Bring in use of strsep() to handle bad input better, and clean up

some text.

Obtained from:	Merge from OpenBSD
(cut.1 up to OpenBSD rev 1.3, cut.c up to OpenBSD rev 1.6)

2 files changed, 8 insertions, 7 deletions

diff --git a/usr.bin/cut/cut.1 b/usr.bin/cut/cut.1
index 80d36fa..fd1c92d 100644
--- a/usr.bin/cut/cut.1
+++ b/usr.bin/cut/cut.1
@@ -67,11 +67,11 @@ The items specified by
 can be in terms of column position or in terms of fields delimited
 by a special character. Column numbering starts from 1.
 .Pp
-.Ar List
+.Ar list
 is a comma or whitespace separated set of increasing numbers and/or
 number ranges.
 Number ranges consist of a number, a dash
-.Pq Li \- ,
+.Pq Sq \- ,
 and a second number
 and select the fields or columns from the first number to the second,
 inclusive.
@@ -109,8 +109,9 @@ Suppresses lines with no field delimiter characters.
 Unless specified, lines with no delimiters are passed through unmodified.
 .El
 .Pp
-.Nm Cut
-exits 0 on success, 1 if an error occurred.
+The
+.Nm cut
+utility exits 0 on success or 1 if an error occurred.
 .Sh SEE ALSO
 .Xr paste 1
 .Sh STANDARDS
diff --git a/usr.bin/cut/cut.c b/usr.bin/cut/cut.c
index 1075729..11e9513 100644
--- a/usr.bin/cut/cut.c
+++ b/usr.bin/cut/cut.c
@@ -80,7 +80,7 @@ main(argc, argv)
 
 	/* Since we don't support multi-byte characters, the -c and -b 
 	   options are equivalent, and the -n option is meaningless. */
-	while ((ch = getopt(argc, argv, "b:c:d:f:sn")) != EOF)
+	while ((ch = getopt(argc, argv, "b:c:d:f:sn")) != -1)
 		switch(ch) {
 		case 'b':
 		case 'c':
@@ -147,7 +147,7 @@ get_list(list)
 	 * overlapping lists.  We also handle "-3-5" although there's no
 	 * real reason too.
 	 */
-	for (; (p = strtok(list, ", \t")); list = NULL) {
+	for (; (p = strsep(&list, ", \t"));) {
 		setautostart = start = stop = 0;
 		if (*p == '-') {
 			++p;
@@ -231,7 +231,7 @@ f_cut(fp, fname)
 		output = 0;
 		for (isdelim = 0, p = lbuf;; ++p) {
 			if (!(ch = *p))
-				errx(1, "%s: line too long", fname);
+				errx(1, "%s: line too long.", fname);
 			/* this should work if newline is delimiter */
 			if (ch == sep)
 				isdelim = 1;