chcon: trivial fix

diff --git a/selinux/chcon.c b/selinux/chcon.c
index f0590b5..3609880 100644
--- a/selinux/chcon.c
+++ b/selinux/chcon.c
@@ -136,7 +136,7 @@
 		":\xff--urtl:u--\xff:r--\xff:t--\xff:l--\xff"
 #endif
 		":f--v:v--f";  /* 'verbose' and 'quiet' are exclusive */
-	getopt32(argv, "Rchf:u:r:t:l:v",
+	getopt32(argv, "Rchfu:r:t:l:v",
 		&user, &role, &type, &range, &reference_file);
 	argv += optind;