D32508.diff
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	diff --git a/usr.sbin/mixer/mixer.c b/usr.sbin/mixer/mixer.c
	--- a/usr.sbin/mixer/mixer.c
	+++ b/usr.sbin/mixer/mixer.c
	@@ -65,7 +65,7 @@
	int aflag = 0, dflag = 0, oflag = 0, sflag = 0;
	int ch;

	- while ((ch = getopt(argc, argv, "ad:f:os")) != -1) {
	+ while ((ch = getopt(argc, argv, "ad:f:hos")) != -1) {
	switch (ch) {
	case 'a':
	aflag = 1;
	@@ -85,6 +85,7 @@
	case 's':
	sflag = 1;
	break;
	+ case 'h': /* FALLTROUGH */
	case '?':
	default:
	usage();
	@@ -175,7 +176,8 @@
	usage(void)
	{
	fprintf(stderr, "usage: %1$s [-f device] [-d unit] [-os] [dev[.control[=value]]] ...\n"
	- " %1$s [-d unit] [-os] -a\n", getprogname());
	+ " %1$s [-d unit] [-os] -a\n"
	+ " %1$s -h\n", getprogname());
	exit(1);
	}