Merge branch 'dp/worktree-repair-in-usage'

Usage string fix.

* dp/worktree-repair-in-usage:
  worktree: include repair cmd in usage

builtin/worktree.c

@@ -22,6 +22,7 @@ static const char * const worktree_usage[] = {
 	N_("git worktree move <worktree> <new-path>"),
 	N_("git worktree prune [<options>]"),
 	N_("git worktree remove [<options>] <worktree>"),
+	N_("git worktree repair [<path>...]"),
 	N_("git worktree unlock <path>"),
 	NULL
 };