Enable the 't' option, and document it in the manpage.

Submitted by: green@freebsd.org <Brian Fundakowski Feldman>

usr.sbin/burncd/burncd.8

@@ -60,6 +60,8 @@ eject the CD-R/RW when done.
 use preemphasis on audio tracks.
 .It Fl q
 quiet, dont print progress messages.
+.It Fl t
+test write, dont actually wirte on the media.
 .El
 .Pp
 .Ar command 

usr.sbin/burncd/burncd.c

@@ -54,7 +54,7 @@ main(int argc, char **argv)
 	int block_size, cdopen = 0, size, tot_size = 0;
 	struct cdr_track track;
 
-	while ((ch = getopt(argc, argv, "ef:pqs:")) != -1) {
+	while ((ch = getopt(argc, argv, "ef:pqs:t")) != -1) {
 		switch (ch) {
 		case 'e':
 			eject = 1;
@@ -81,6 +81,7 @@ main(int argc, char **argv)
 			break;
 
 		default: 
+			exit(EX_USAGE);
 		}
 	}
 	argc -= optind;