submodule: add a helper to check if it is safe to write to .gitmodules

diff --git a/builtin/shortlog.c b/builtin/shortlog.c
index 608d6ba77bdfb4673513444651053d0e8e789020..3898a2c9c428864caf43b0f8160a441488643e29 100644 (file)
--- a/builtin/shortlog.c
+++ b/builtin/shortlog.c
@@ -268,8 +268,9 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix)
                         N_("Suppress commit descriptions, only provides commit count")),
                OPT_BOOL('e', "email", &log.email,
                         N_("Show the email address of each author")),
-               { OPTION_CALLBACK, 'w', NULL, &log, N_("w[,i1[,i2]]"),
-                       N_("Linewrap output"), PARSE_OPT_OPTARG, &parse_wrap_args },
+               { OPTION_CALLBACK, 'w', NULL, &log, N_("<w>[,<i1>[,<i2>]]"),
+                       N_("Linewrap output"), PARSE_OPT_OPTARG,
+                       &parse_wrap_args },
                OPT_END(),
        };