btrfs-progs: find-root: rename usage helper

This would clash with the generic usage from commands.h.

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

diff --git a/btrfs-find-root.c b/btrfs-find-root.c
index ed1540a..66e6403 100644 (file)
--- a/btrfs-find-root.c
+++ b/btrfs-find-root.c
@@ -36,7 +36,7 @@
 #include "extent-cache.h"
 #include "find-root.h"
 
-static void usage(void)
+static void find_root_usage(void)
 {
        fprintf(stderr, "Usage: find-roots [-a] [-o search_objectid] "
                "[ -g search_generation ] [ -l search_level ] <device>\n");
@@ -179,14 +179,14 @@ int main(int argc, char **argv)
                        break;
                case GETOPT_VAL_HELP:
                default:
-                       usage();
+                       find_root_usage();
                        exit(c != GETOPT_VAL_HELP);
                }
        }
 
        set_argv0(argv);
        if (check_argc_min(argc - optind, 1)) {
-               usage();
+               find_root_usage();
                exit(1);
        }