btrfs-progs: fi du: update help text

Move the command-specific options to the beginning, add missing long
option.

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

diff --git a/cmds-fi-du.c b/cmds-fi-du.c
index 09d4a65..52dba3f 100644 (file)
--- a/cmds-fi-du.c
+++ b/cmds-fi-du.c
@@ -526,8 +526,8 @@ out:
 const char * const cmd_filesystem_du_usage[] = {
        "btrfs filesystem du [options] <path> [<path>..]",
        "Summarize disk usage of each file.",
+       "-s|--summarize     display only a total for each argument",
        HELPINFO_UNITS_LONG,
-       "-s                 display only a total for each argument",
        NULL
 };