Small tweaks:

- fix macro argument
- wrap long line
- be more explicit about old pid_t type.

MFC after:	1 week

1 files changed, 4 insertions, 4 deletions

diff --git a/share/man/man4/aout.4 b/share/man/man4/aout.4
index 57fa15e..e44362e 100644
--- a/share/man/man4/aout.4
+++ b/share/man/man4/aout.4
@@ -36,7 +36,7 @@ kldload a.out
 The
 .Xr a.out 5
 executable format was used before the release of
-.Fx 3.0.
+.Fx 3.0 .
 Since i386 was the only supported architecture at that time,
 .Xr a.out 5
 executables can only be activated on platforms that support
@@ -75,8 +75,8 @@ The
 .Xr a.out 5
 format was mainstream quite a long time ago.
 Reasonable default settings and security requirements of
-modern operating systems today contradict the default environment of that time and
-require adjustments of the system to mimic natural environment for
+modern operating systems today contradict the default environment of that time
+and require adjustments of the system to mimic natural environment for
 old binaries.
 .Pp
 The following
@@ -93,7 +93,7 @@ executable images require text mapping at address 0.
 .Xc
 Old versions of
 .Fx
-used 16-bit types for
+used signed 16-bit type for
 .Vt pid_t .
 Current kernels use 32-bit type for
 .Vt pid_t ,