stash: convert pop to builtin

diff --git a/builtin/clean.c b/builtin/clean.c
index 8d9a7dc20647079bc5f35b446bbbab5479abb32d..bbcdeb2d9e7f275309609a2a21a5dd4baf1cf1bd 100644 (file)
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -140,6 +140,7 @@ static void clean_print_color(enum color_clean ix)
 static int exclude_cb(const struct option *opt, const char *arg, int unset)
 {
        struct string_list *exclude_list = opt->value;
+       BUG_ON_OPT_NEG(unset);
        string_list_append(exclude_list, arg);
        return 0;
 }