parse-opt: add PARSE_OPT_KEEP_ARGV0 parser option.

diff --git a/builtin-diff.c b/builtin-diff.c
index 8b3b51eae0f928d217c7c91f294f1498d05ad1cf..4c289e798a25ee3893a483abd8465740999dcbef 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -268,7 +268,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
         */
 
        prefix = setup_git_directory_gently(&nongit);
-       git_config(git_diff_ui_config);
+       git_config(git_diff_ui_config, NULL);
 
        if (diff_use_color_default == -1)
                diff_use_color_default = git_use_color_default;