btrfs-progs: do not set optind if not necessary

In the subcommand callbacks that are called just once, we don't need to
explicitly reset optind.

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

1 files changed, 0 insertions, 1 deletions

diff --git a/cmds-fi-usage.c b/cmds-fi-usage.c
index b26ece1d..04d68b18 100644
--- a/cmds-fi-usage.c
+++ b/cmds-fi-usage.c
@@ -922,7 +922,6 @@ int cmd_filesystem_usage(int argc, char **argv)
 
 	unit_mode = get_unit_mode_from_arg(&argc, argv, 1);
 
-	optind = 1;
 	while (1) {
 		int c;