format-patch: document --quiet option

diff --git a/string-list.h b/string-list.h
index a37cae599ab61d3d09b08a9cc67e99841cfa6ed6..bda69839832d2030c15bbd86c4d8d79aa3cc4785 100644 (file)
--- a/string-list.h
+++ b/string-list.h
@@ -5,13 +5,15 @@ struct string_list_item {
        char *string;
        void *util;
 };
-struct string_list
-{
+struct string_list {
        struct string_list_item *items;
        unsigned int nr, alloc;
        unsigned int strdup_strings:1;
 };
 
+#define STRING_LIST_INIT_NODUP { NULL, 0, 0, 0 }
+#define STRING_LIST_INIT_DUP   { NULL, 0, 0, 1 }
+
 void print_string_list(const struct string_list *p, const char *text);
 void string_list_clear(struct string_list *list, int free_util);