Merge branch 'es/outside-repo-errmsg-hints'

Error message clarification.

* es/outside-repo-errmsg-hints:
  prefix_path: show gitdir when arg is outside repo

setup.c

@@ -121,7 +121,8 @@ char *prefix_path(const char *prefix, int len, const char *path)
 {
 	char *r = prefix_path_gently(prefix, len, NULL, path);
 	if (!r)
-		die(_("'%s' is outside repository"), path);
+		die(_("'%s' is outside repository at '%s'"), path,
+		    absolute_path(get_git_work_tree()));
 	return r;
 }