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btrfs-progs
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btrfs-progs: find-root: use common usage helper for uknown option 

Disable getopt reporting and use the existing helper to report unknown
option.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-03-04 16:06:44 +01:00
parent 27097a2125
commit 5ec301036e
1 changed files with 9 additions and 2 deletions
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11
btrfs-find-root.c
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@ -143,6 +143,11 @@ static void print_find_root_result(struct cache_tree *result,
}
}
/* Stub usage for the common helpers */
static const char * btrfs_find_root_usage[] = {
"btrfs-find-usage",
};
int main(int argc, char **argv)
{
struct btrfs_fs_info *fs_info;
@ -155,6 +160,7 @@ int main(int argc, char **argv)
filter.objectid = BTRFS_ROOT_TREE_OBJECTID;
filter.match_gen = (u64)-1;
filter.match_level = (u8)-1;
opterr = 0;
while (1) {
static const struct option long_options[] = {
{ "help", no_argument, NULL, GETOPT_VAL_HELP},
@ -179,9 +185,10 @@ int main(int argc, char **argv)
filter.level = arg_strtou64(optarg);
break;
case GETOPT_VAL_HELP:
default:
find_root_usage();
exit(c != GETOPT_VAL_HELP);
return 0;
default:
usage_unknown_option(btrfs_find_root_usage, argv);
}
}