- fix duplicate "a a" in some comments

Submitted by:	eadler
Approved by:	simon
MFC after:	3 days

sbin/gvinum/gvinum.c

@@ -557,7 +557,7 @@ find_pattern(char *line, char *pattern)
 	return (NULL);
 }
 
-/* Find a free name for an object given a a prefix. */
+/* Find a free name for an object given a prefix. */
 char *
 find_name(const char *prefix, int type, int namelen)
 {

sbin/ipfw/main.c

@@ -87,7 +87,7 @@ help(void)
  * which includes the program name and a NULL entry at the end.
  * If we are called with a single string, we split it on whitespace.
  * Also, arguments with a trailing ',' are joined to the next one.
- * The pointers (av[]) and data are in a a single chunk of memory.
+ * The pointers (av[]) and data are in a single chunk of memory.
  * av[0] points to the original program name, all other entries
  * point into the allocated chunk.
  */

sys/cam/scsi/scsi_ch.h

@@ -359,7 +359,7 @@ struct page_device_capabilities {
  * Some of these fields can be a little confusing, so an explanation
  * is in order.
  *
- * Each component within a a medium changer apparatus is called an
+ * Each component within a medium changer apparatus is called an
  * "element".
  *
  * The "medium transport element address" is the address of the first

sys/cam/scsi/scsi_ses.c

@@ -714,7 +714,7 @@ ses_log(struct ses_softc *ssc, const char *fmt, ...)
 /*
  * Is this a device that supports enclosure services?
  *
- * It's a a pretty simple ruleset- if it is device type 0x0D (13), it's
+ * It's a pretty simple ruleset- if it is device type 0x0D (13), it's
  * an SES device. If it happens to be an old UNISYS SEN device, we can
  * handle that too.
  */

sys/fs/devfs/devfs_rule.c

@@ -617,7 +617,7 @@ devfs_rule_run(struct devfs_krule *dk, struct devfs_dirent *de, unsigned depth)
 		 * XXX: not work as this is called when devices are created
 		 * XXX: long time after the rules were instantiated.
 		 * XXX: a printf() would probably give too much noise, or
-		 * XXX: DoS the machine.  I guess a a rate-limited message
+		 * XXX: DoS the machine.  I guess a rate-limited message
 		 * XXX: might work.
 		 */
 		if (depth > 0) {

sys/netinet/sctp_structs.h

@@ -416,7 +416,7 @@ TAILQ_HEAD(sctpchunk_listhead, sctp_tmit_chunk);
 #define CHUNK_FLAGS_PR_SCTP_BUF	        SCTP_PR_SCTP_BUF
 #define CHUNK_FLAGS_PR_SCTP_RTX         SCTP_PR_SCTP_RTX
 
-/* The upper byte is used a a bit mask */
+/* The upper byte is used as a bit mask */
 #define CHUNK_FLAGS_FRAGMENT_OK	        0x0100
 
 struct chk_id {

usr.sbin/mtree/mtree.5

@@ -48,7 +48,7 @@ Leading whitespace is always ignored.
 .Pp
 When encoding file or pathnames, any backslash character or
 character outside of the 95 printable ASCII characters must be
-encoded as a a backslash followed by three
+encoded as a backslash followed by three
 octal digits.
 When reading mtree files, any appearance of a backslash
 followed by three octal digits should be converted into the

usr.sbin/pmcstat/pmcstat.c

@@ -1022,7 +1022,7 @@ main(int argc, char **argv)
 
 	/*
 	 * Check if "-k kerneldir" was specified, and if whether
-	 * 'kerneldir' actually refers to a a file.  If so, use
+	 * 'kerneldir' actually refers to a file.  If so, use
 	 * `dirname path` to determine the kernel directory.
 	 */
 	if (args.pa_flags & FLAG_HAS_KERNELPATH) {