Fix lots of markup and content bug.

Submitted by: ru

7 files changed, 201 insertions, 139 deletions

diff --git a/lib/libc/sys/mq_close.2 b/lib/libc/sys/mq_close.2
index 3f0461c..c2968fb 100644
--- a/lib/libc/sys/mq_close.2
+++ b/lib/libc/sys/mq_close.2
@@ -42,9 +42,10 @@
 .Sh DESCRIPTION
 The
 .Fn mq_close
-system call removes the association between the message queue descriptor, 
+system call removes the association between the message queue descriptor,
 .Fa mqdes ,
-and its message queue. The results of using this message queue descriptor
+and its message queue.
+The results of using this message queue descriptor
 after successful return from this
 .Fn mq_close ,
 and until the return of this message queue descriptor from a subsequent
@@ -57,12 +58,7 @@ message queue via this
 this attachment will be removed, and the message queue is available for
 another process to attach for notification.
 .Sh RETURN VALUES
-Upon successful completion, the
-.Fn mq_close
-system call returns a value of zero; otherwise, the system call returns a
-value of -1 and set
-.Va errno
-to indicate the error.
+.Rv -std
 .Sh ERRORS
 The
 .Fn mq_close
@@ -80,8 +76,10 @@ argument is not a valid message queue descriptor.
 .Sh STANDARDS
 The
 .Fn mq_close
-system call conform to
+system call conforms to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
diff --git a/lib/libc/sys/mq_getattr.2 b/lib/libc/sys/mq_getattr.2
index 72798d2..f34c498 100644
--- a/lib/libc/sys/mq_getattr.2
+++ b/lib/libc/sys/mq_getattr.2
@@ -28,7 +28,7 @@
 .\" $FreeBSD$
 .\"
 .Dd November 29, 2005
-.Dt MQ_CLOSE 2
+.Dt MQ_GETATTR 2
 .Os
 .Sh NAME
 .Nm mq_getattr
@@ -52,35 +52,33 @@ argument specifies a message queue descriptor.
 .Pp
 The results are returned in the
 .Vt mq_attr
-structure referenced by the mqstat argument.
+structure referenced by the
+.Fa mqstat
+argument.
 .Pp
 Upon return, the following members will have the values associated with the
 open message queue description as set when the message queue was opened and
 as modified by subsequent
 .Fn mq_setattr
 calls:
-.Va mq_flags.
+.Va mq_flags .
 .Pp
 The following attributes of the message queue will be returned as set at
 message queue creation:
-.Va mq_maxmsg ,
-.Va mq_msgsize .
+.Va mq_maxmsg , mq_msgsize .
 .Pp
 Upon return, the following members within the
 .Vt mq_attr
-structure referenced by the mqstat argument will be set to the current state
+structure referenced by the
+.Fa mqstat
+argument will be set to the current state
 of the message queue:
-.Pp
-.Bl -tag -width Er
+.Bl -tag -width ".Va mq_flags"
 .It Va mq_flags
-The number of messages currently on the queue. 
+The number of messages currently on the queue.
 .El
 .Sh RETURN VALUES
-Upon successful completion, the
-.Fn mq_getattr
-system call returns zero. Otherwise, the system call returns -1 and set
-.Va errno
-to indicate the error.
+.Rv -std
 .Sh ERRORS
 The
 .Fn mq_getattr
@@ -96,12 +94,14 @@ argument is not a valid message queue descriptor.
 .Xr mq_open 2 ,
 .Xr mq_send 2 ,
 .Xr mq_setattr 2 ,
-.Xr mq_timedsend 2 ,
+.Xr mq_timedsend 2
 .Sh STANDARDS
 The
 .Fn mq_getattr
-system call conform to
+system call conforms to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
diff --git a/lib/libc/sys/mq_notify.2 b/lib/libc/sys/mq_notify.2
index cae6e16..f4009e4 100644
--- a/lib/libc/sys/mq_notify.2
+++ b/lib/libc/sys/mq_notify.2
@@ -44,22 +44,28 @@ If the argument notification is not
 .Dv NULL ,
 this system call will register the calling process to be notified of message
 arrival at an empty message queue associated with the specified message
-queue descriptor, 
-.Fa mqdes.
-The notification specified by the notification argument will be sent to
+queue descriptor,
+.Fa mqdes .
+The notification specified by the
+.Fa notification
+argument will be sent to
 the process when the message queue transitions from empty to non-empty.
 At any time, only one process may be registered for notification by a
-message queue. If the calling process or any other process has already
+message queue.
+If the calling process or any other process has already
 registered for notification of message arrival at the specified message
 queue, subsequent attempts to register for that message queue will fail.
 .Pp
-If notification is
+If
+.Fa notification
+is
 .Dv NULL
 and the process is currently registered for notification by the specified
 message queue, the existing registration will be removed.
 .Pp
 When the notification is sent to the registered process, its registration
-is removed. The message queue then is available for registration.
+is removed.
+The message queue then is available for registration.
 .Pp
 If a process has registered for notification of message arrival at a
 message queue and some thread is blocked in
@@ -70,12 +76,7 @@ arriving message will satisfy the appropriate
 The resulting behavior is as if the message queue remains empty, and no
 notification will be sent.
 .Sh RETURN VALUES
-Upon successful completion, the
-.Fn mq_notify
-system call returns a value of zero; otherwise, the function returns a value
-of -1 and set
-.Va errno
-to indicate the error.
+.Rv -std
 .Sh ERRORS
 The
 .Fn mq_notify
@@ -87,7 +88,7 @@ The
 .Fa mqdes
 argument is not a valid message queue descriptor.
 .It Bq Er EBUSY
-process is already registered for notification by the message queue.
+Process is already registered for notification by the message queue.
 .El
 .Sh SEE ALSO
 .Xr mq_open 2 ,
@@ -96,8 +97,10 @@ process is already registered for notification by the message queue.
 .Sh STANDARDS
 The
 .Fn mq_notify
-system call conform to
+system call conforms to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
diff --git a/lib/libc/sys/mq_open.2 b/lib/libc/sys/mq_open.2
index 5d5a3f7..a128e9a 100644
--- a/lib/libc/sys/mq_open.2
+++ b/lib/libc/sys/mq_open.2
@@ -31,7 +31,7 @@
 .Dt MQ_OPEN 2
 .Os
 .Sh NAME
-.Nm mq_open 
+.Nm mq_open
 .Nd "open a message queue (REALTIME)"
 .Sh LIBRARY
 .Lb libc
@@ -42,45 +42,54 @@
 .Sh DESCRIPTION
 The
 .Fn mq_open
-system call establishs the connection between a process and a message queue
-with a message queue descriptor. It creates an open message queue
+system call establishes the connection between a process and a message queue
+with a message queue descriptor.
+It creates an open message queue
 description that refers to the message queue, and a message queue descriptor
-that refers to that open message queue description. The message queue
-descriptor is used by other functions to refer to that message queue. The
+that refers to that open message queue description.
+The message queue
+descriptor is used by other functions to refer to that message queue.
+The
 .Fa name
-argument points to a string naming a message queue. It is unspecified
+argument points to a string naming a message queue.
+It is unspecified
 whether the name appears in the file system and is visible to other functions
-that take pathnames as arguments. The
+that take pathnames as arguments.
+The
 .Fa name
-argument conforms to the construction rules for a pathname. If 
+argument conforms to the construction rules for a pathname.
+If
 .Fa name
 begins with the slash character, then processes calling
 .Fn mq_open
-with the same value of 
+with the same value of
 .Fa name
 refers to the same message queue object, as long as that name has not been
-removed. If
+removed.
+If
 .Fa name
 does not begin with the slash character, the effect is implementation-defined.
 The interpretation of slash characters other than the leading slash character
 in
 .Fa name
-is implementation-defined. If the
+is implementation-defined.
+If the
 .Fa name
 argument is not the name of an existing message queue and creation is not
 requested,
 .Fn mq_open
-will fail and returns an error.
+will fail and return an error.
 .Pp
 A message queue descriptor may be implemented using a file descriptor, in
-which case applications can open up to at least 
+which case applications can open up to at least
 .Brq Dv OPEN_MAX
 file and message queues.
 .Pp
 The
 .Fa oflag
 argument requests the desired receive and/or send access to the message
-queue. The requested access permission to receive messages or send messages
+queue.
+The requested access permission to receive messages or send messages
 would be granted if the calling process would be granted read or write access,
 respectively, to an equivalently protected file.
 .Pp
@@ -90,25 +99,28 @@ is the bitwise-inclusive OR of values from the following list.
 Applications should specify exactly one of the first three values (access
 modes) below in the value of
 .Fa oflag :
-.Bl -tag -width Er
-.It Bq Er O_RDONLY
-Open the message queue for receiving messages. The process can use the
+.Bl -tag -width ".Dv O_NONBLOCK"
+.It Dv O_RDONLY
+Open the message queue for receiving messages.
+The process can use the
 returned message queue descriptor with
 .Fn mq_receive ,
 but not
 .Fn mq_send .
 A message queue may be open multiple times in the same or different processes
 for receiving messages.
-.It Bq Er O_WRONLY
-Open the queue for sending messages. The process can use the returned
+.It Dv O_WRONLY
+Open the queue for sending messages.
+The process can use the returned
 message queue descriptor with
 .Fn mq_send
 but not
 .Fn mq_receive .
 A message queue may be open multiple times in the same or different processes
 for sending messages.
-.It Bq Er O_RDWR
-Open the queue for both receiving and sending messages. The process can use
+.It Dv O_RDWR
+Open the queue for both receiving and sending messages.
+The process can use
 any of the functions allowed for
 .Dv O_RDONLY
 and
@@ -119,37 +131,45 @@ for sending messages.
 .Pp
 Any combination of the remaining flags may be specified in the value of
 .Fa oflag :
-.Bl -tag -width Er
-.It Bq Er O_CREAT
-Create a message queue. It requires two additional arguments:
+.Bl -tag -width ".Dv O_NONBLOCK"
+.It Dv O_CREAT
+Create a message queue.
+It requires two additional arguments:
 .Fa mode ,
 which is of type
 .Vt mode_t ,
 and
 .Fa attr ,
-which is a pointer to an 
+which is a pointer to an
 .Vt mq_attr
-structure. If the pathname
+structure.
+If the pathname
 .Fa name
 has already been used to create a message queue that still exists, then
 this flag has no effect, except as noted under
 .Dv O_EXCL .
 Otherwise, a message queue will be created without any messages
-in it. The user ID of the message queue will be set to the effective user ID
+in it.
+The user ID of the message queue will be set to the effective user ID
 of the process, and the group ID of the message queue will be set to the
-effective group ID of the process. The permission bits of the message queue
+effective group ID of the process.
+The permission bits of the message queue
 will be set to the value of the
 .Fa mode
 argument, except those set in the file mode creation mask of the process.
 When bits in
 .Fa mode
 other than the file permission bits are specified, the effect is
-unspecified. If
+unspecified.
+If
 .Fa attr
 is
 .Dv NULL ,
 the message queue is created with implementation-defined default message
-queue attributes. If attr is non-NULL and the calling process has the
+queue attributes.
+If attr is
+.Pf non- Dv NULL
+and the calling process has the
 appropriate privilege on name, the message queue
 .Va mq_maxmsg
 and
@@ -160,11 +180,13 @@ structure referred to by
 .Fa attr .
 If
 .Fa attr
-is non-NULL, but the calling process does not have the appropriate privilege
+is
+.Pf non- Dv NULL ,
+but the calling process does not have the appropriate privilege
 on name, the
 .Fn mq_open
 function will fail and return an error without creating the message queue.
-.It Bq Er O_EXCL
+.It Dv O_EXCL
 If
 .Dv O_EXCL
 and
@@ -172,36 +194,44 @@ and
 are set,
 .Fn mq_open
 will fail if the message queue name exists.
-.It Bq Er O_NONBLOCK
+.It Dv O_NONBLOCK
 Determines whether an
 .Fn mq_send
 or
 .Fn mq_receive
 waits for resources or messages that are not currently available, or fails
-with errno set to 
+with
+.Va errno
+set to
 .Er EAGAIN ;
 see
-.Fn mq_send
+.Xr mq_send 2
 and
-.Fn mq_receive
+.Xr mq_receive 2
 for details.
+.El
 .Pp
 The
 .Fn mq_open
-function does not add or remove messages from the queue.
+system call does not add or remove messages from the queue.
 .Sh NOTES
-FreeBSD implements message queue based on file descriptor. The descriptor
+.Fx
+implements message queue based on file descriptor.
+The descriptor
 is inherited by child after
-.Fn fork .
-The descriptor is closed in new image after
-.Fn exec .
-.Fn select
+.Xr fork 2 .
+The descriptor is closed in a new image after
+.Xr exec 3 .
+The
+.Xr select 2
 and
-.Fn kevent
+.Xr kevent 2
 system calls are supported for message queue descriptor.
 .Sh RETURN VALUES
 Upon successful completion, the function returns a message queue
-descriptor; otherwise, the function returns (mqd_t)-1 and set
+descriptor; otherwise, the function returns
+.Po Vt mqd_t Pc Ns \-1
+and sets the global variable
 .Va errno
 to indicate the error.
 .Sh ERRORS
@@ -214,7 +244,7 @@ will fail if:
 The message queue exists and the permissions specified by
 .Fa oflag
 are denied, or the message queue does not exist and permission to create the
-message queue is denied
+message queue is denied.
 .It Bq Er EEXIST
 .Dv O_CREAT
 and
@@ -232,7 +262,9 @@ function is not supported for the given name.
 .Dv O_CREAT
 was specified in
 .Fa oflag ,
-the value of attr is not
+the value of
+.Fa attr
+is not
 .Dv NULL ,
 and either
 .Va mq_maxmsg
@@ -243,7 +275,9 @@ was less than or equal to zero.
 Too many message queue descriptors or file descriptors are currently in use
 by this process.
 .It Bq Er ENAMETOOLONG
-The length of the name argument exceeds
+The length of the
+.Fa name
+argument exceeds
 .Brq Dv PATH_MAX
 or a pathname component
 is longer than
@@ -263,19 +297,21 @@ There is insufficient space for the creation of the new message queue.
 .Xr mq_send 2 ,
 .Xr mq_setattr 2 ,
 .Xr mq_timedreceive 3 ,
-.Xr mq_timedsend 3
+.Xr mq_timedsend 3 ,
 .Xr mq_unlink 3
 .Sh STANDARDS
 The
 .Fn mq_open
-system call conform to
+system call conforms to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
 .Sh BUGS
 This implementation places strict requirements on the value of
 .Fa name :
 it must begin with a slash
-.Pq Ql / ,
-contain no other slash characters.
+.Pq Ql /
+and contain no other slash characters.
diff --git a/lib/libc/sys/mq_receive.2 b/lib/libc/sys/mq_receive.2
index b6dd2cf..2103e09 100644
--- a/lib/libc/sys/mq_receive.2
+++ b/lib/libc/sys/mq_receive.2
@@ -28,7 +28,7 @@
 .\" $FreeBSD$
 .\"
 .Dd November 29, 2005
-.Dt MQ_SEND 2
+.Dt MQ_RECEIVE 2
 .Os
 .Sh NAME
 .Nm mq_receive , mq_timedreceive
@@ -45,7 +45,7 @@
 .Fa "unsigned *msg_prio"
 .Fc
 .Ft ssize_t
-.Fo mq_timereceive
+.Fo mq_timedreceive
 .Fa "mqd_t mqdes"
 .Fa "char *msg_ptr"
 .Fa "size_t msg_len"
@@ -61,14 +61,15 @@ message queue specified by
 If the size of the buffer in bytes, specified by the
 .Fa msg_len
 argument, is less than the
-.Fa mq_msgsize
+.Va mq_msgsize
 attribute of the message queue, the system call will fail and return an
-error. Otherwise, the selected message will be removed from the queue
+error.
+Otherwise, the selected message will be removed from the queue
 and copied to the buffer pointed to by the
 .Fa msg_ptr
 argument.
 .Pp
-If the value of 
+If the value of
 .Fa msg_len
 is greater than
 .Brq Dv SSIZE_MAX ,
@@ -76,7 +77,9 @@ the result is implementation-defined.
 .Pp
 If the argument
 .Fa msg_prio
-is not NULL, the priority of the selected message will be stored in the
+is not
+.Dv NULL ,
+the priority of the selected message will be stored in the
 location referenced by
 .Fa msg_prio .
 If the specified message queue is empty and
@@ -86,14 +89,17 @@ is not set in the message queue description associated with
 .Fn mq_receive
 will block until a message is enqueued on the message queue or until
 .Fn mq_receive
-is interrupted by a signal. If more than one thread is waiting to receive
+is interrupted by a signal.
+If more than one thread is waiting to receive
 a message when a message arrives at an empty queue and the Priority
 Scheduling option is supported, then the thread of highest priority that
 has been waiting the longest will be selected to receive the message.
 Otherwise, it is unspecified which waiting thread receives the message.
 If the specified message queue is empty and
 .Dv O_NONBLOCK
-is set in the message queue description associated with mqdes, no message
+is set in the message queue description associated with
+.Fa mqdes ,
+no message
 will be removed from the queue, and
 .Fn mq_receive
 will return an error.
@@ -105,12 +111,14 @@ message queue specified by
 .Fa mqdes
 as described for the
 .Fn mq_receive
-system call. However, if
+system call.
+However, if
 .Dv O_NONBLOCK
 was not specified when the message queue was opened via the
 .Fn mq_open
 system call, and no message exists on the queue to satisfy the receive, the wait
-for such a message will be terminated when the specified timeout expires. If
+for such a message will be terminated when the specified timeout expires.
+If
 .Dv O_NONBLOCK
 is set, this system call is equivalent to
 .Fn mq_receive .
@@ -124,18 +132,21 @@ or if the absolute time specified by
 .Fa abs_timeout
 has already been passed at the time of the call.
 .Pp
-The timeout is based on the CLOCK_REALTIME clock.
-.Pp
+The timeout is based on the
+.Dv CLOCK_REALTIME
+clock.
 .Sh RETURN VALUES
 Upon successful completion, the
 .Fn mq_receive
 and
 .Fn mq_timedreceive
 system calls return the length of the selected message in bytes and the
-message is removed from the queue. Otherwise, no message is removed
-from the queue, the system call return a value of -1, and set
+message is removed from the queue.
+Otherwise, no message is removed
+from the queue, the system call returns a value of \-1,
+and the global variable
 .Va errno
-to indicate the error.
+is set to indicate the error.
 .Sh ERRORS
 The
 .Fn mq_receive
@@ -177,14 +188,16 @@ on the queue before the specified timeout expired.
 .Sh SEE ALSO
 .Xr mq_open 2 ,
 .Xr mq_send 2 ,
-.Xr mq_timesend 2
+.Xr mq_timedsend 2
 .Sh STANDARDS
 The
 .Fn mq_receive
 and
-.Fn mq_timereceive
+.Fn mq_timedreceive
 system calls conform to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
diff --git a/lib/libc/sys/mq_send.2 b/lib/libc/sys/mq_send.2
index c021b89..0d63a40 100644
--- a/lib/libc/sys/mq_send.2
+++ b/lib/libc/sys/mq_send.2
@@ -45,7 +45,7 @@
 .Fa "unsigned msg_prio"
 .Fc
 .Ft int
-.Fo mq_timesend
+.Fo mq_timedsend
 .Fa "mqd_t mqdes"
 .Fa "const char *msg_ptr"
 .Fa "size_t msg_len"
@@ -59,14 +59,14 @@ system call adds the message pointed to by the argument
 .Fa msg_ptr
 to the message queue specified by
 .Fa mqdes .
-The 
+The
 .Fa msg_len
 argument specifies the length of the message, in bytes, pointed to by
 .Fa msg_ptr .
 The value of
 .Fa msg_len
 should be less than or equal to the
-.Fa mq_msgsize
+.Va mq_msgsize
 attribute of the message queue, or
 .Fn mq_send
 will fail.
@@ -76,7 +76,8 @@ If the specified message queue is not full,
 will behave as if the message is inserted into the message queue at
 the position indicated by the
 .Fa msg_prio
-argument. A message with a larger numeric value of
+argument.
+A message with a larger numeric value of
 .Fa msg_prio
 will be inserted before messages with lower values of
 .Fa msg_prio .
@@ -96,12 +97,15 @@ is not set in the message queue description associated with
 will block until space becomes available to enqueue the
 message, or until
 .Fn mq_send
-is interrupted by a signal. If more than one thread is
+is interrupted by a signal.
+If more than one thread is
 waiting to send when space becomes available in the message queue and
 the Priority Scheduling option is supported, then the thread of the
 highest priority that has been waiting the longest will be unblocked
-to send its message. Otherwise, it is unspecified which waiting thread
-is unblocked. If the specified message queue is full and
+to send its message.
+Otherwise, it is unspecified which waiting thread
+is unblocked.
+If the specified message queue is full and
 .Dv O_NONBLOCK
 is set in the message queue description associated with
 .Fa mqdes ,
@@ -115,12 +119,14 @@ system call will add a message to the message queue specified by
 .Fa mqdes
 in the manner defined for the
 .Fn mq_send
-system call. However, if the specified message queue is full and
+system call.
+However, if the specified message queue is full and
 .Dv O_NONBLOCK
 is not set in the message queue description associated with
 .Fa mqdes ,
 the wait for sufficient room in the queue will be terminated when
-the specified timeout expires. If
+the specified timeout expires.
+If
 .Dv O_NONBLOCK
 is set in the message queue description, this system call is
 equivalent to
@@ -129,20 +135,24 @@ equivalent to
 The timeout will expire when the absolute time specified by
 .Fa abs_timeout
 passes, as measured by the clock on which timeouts are based (that is,
-when the value of that clock equals or exceeds 
+when the value of that clock equals or exceeds
 .Fa abs_timeout ) ,
 or if the absolute time specified by
 .Fa abs_timeout
 has already been passed at the time of the call.
 .Pp
-The timeout is based on the CLOCK_REALTIME clock.
+The timeout is based on the
+.Dv CLOCK_REALTIME
+clock.
 .Sh RETURN VALUES
 Upon successful completion, the
 .Fn mq_send
 and
 .Fn mq_timedsend
-system calls return a value of zero. Otherwise, no message will be
-enqueued, the system calls return -1, and
+system calls return a value of zero.
+Otherwise, no message will be
+enqueued, the system calls return \-1, and
+the global variable
 .Va errno
 is set to indicate the error.
 .Sh ERRORS
@@ -167,7 +177,7 @@ argument is not a valid message queue descriptor open for writing.
 A signal interrupted the call to
 .Fn mq_send
 or
-.Fn mq_timedsend. 
+.Fn mq_timedsend .
 .It Bq Er EINVAL
 The value of
 .Fa msg_prio
@@ -191,14 +201,16 @@ expired before the message could be added to the queue.
 .Xr mq_open 2 ,
 .Xr mq_receive 2 ,
 .Xr mq_setattr 2 ,
-.Xr mq_timereceive 2
+.Xr mq_timedreceive 2
 .Sh STANDARDS
 The
 .Fn mq_send
 and
-.Fn mq_timesend
+.Fn mq_timedsend
 system calls conform to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .
diff --git a/lib/libc/sys/mq_setattr.2 b/lib/libc/sys/mq_setattr.2
index 21608f9..b50348c 100644
--- a/lib/libc/sys/mq_setattr.2
+++ b/lib/libc/sys/mq_setattr.2
@@ -28,7 +28,7 @@
 .\" $FreeBSD$
 .\"
 .Dd November 29, 2005
-.Dt MQ_CLOSE 2
+.Dt MQ_SETATTR 2
 .Os
 .Sh NAME
 .Nm mq_setattr
@@ -54,8 +54,7 @@ in the
 .Vt mq_attr
 structure will be set to the specified values upon successful completion of
 .Fn mq_setattr :
-.Pp
-.Bl -tag -width Er
+.Bl -tag -width ".Va mq_flags"
 .It Va mq_flags
 The value of this member is the bitwise-logical OR of zero or more of
 .Dv O_NONBLOCK
@@ -63,11 +62,10 @@ and any implementation-defined flags.
 .El
 .Pp
 The values of the
-.Va mq_maxmsg ,
-.Va mq_msgsize ,
+.Va mq_maxmsg , mq_msgsize ,
 and
 .Va mq_curmsgs
-embers of the
+members of the
 .Vt mq_attr
 structure are ignored by
 .Fn mq_setattr .
@@ -76,7 +74,7 @@ Upon successful completion, the function returns a value of zero and the
 attributes of the message queue will have been changed as specified.
 .Pp
 Otherwise, the message queue attributes are unchanged, and the function
-returns a value of -1 and set 
+returns a value of \-1 and sets the global variable
 .Va errno
 to indicate the error.
 .Sh ERRORS
@@ -93,12 +91,14 @@ argument is not a valid message queue descriptor.
 .Sh SEE ALSO
 .Xr mq_open 2 ,
 .Xr mq_send 2 ,
-.Xr mq_timedsend 2 ,
+.Xr mq_timedsend 2
 .Sh STANDARDS
 The
 .Fn mq_setattr
-system call conform to
+system call conforms to
 .St -p1003.1-2004 .
 .Sh HISTORY
-Support for POSIX message queue first appeared in
+Support for
+.Tn POSIX
+message queues first appeared in
 .Fx 7.0 .