btrfs-progs: subvol show: use clean_args_no_options instead of opencoding

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index 95c23d0..9d9b0af 100644 (file)
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -939,20 +939,7 @@ static int cmd_subvol_show(int argc, char **argv)
        int ret = 1;
        DIR *dirstream1 = NULL, *dirstream2 = NULL;
 
-       while (1) {
-               static const struct option long_options[] = {
-                       {NULL, 0, NULL, 0}
-               };
-               int c = getopt_long(argc, argv, "", long_options, NULL);
-
-               if (c < 0)
-                       break;
-
-               switch (c) {
-               default:
-                       usage(cmd_subvol_show_usage);
-               }
-       }
+       clean_args_no_options(argc, argv, cmd_subvol_show_usage);
 
        if (check_argc_exact(argc - optind, 1))
                usage(cmd_subvol_show_usage);