[PATCH v3 5/7] diff: use skip_to_optional_arg_default() in parsing --relative

[Christian Couder]

From: Junio C Hamano <gits...@pobox.com>

Helped-by: Jacob Keller <jacob.kel...@gmail.com>
Helped-by: Jeff King <p...@peff.net>
Signed-off-by: Junio C Hamano <gits...@pobox.com>
---
 diff.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/diff.c b/diff.c
index 28e1ab168f..3f14cdace6 100644
--- a/diff.c
+++ b/diff.c
@@ -4563,11 +4563,10 @@ int diff_opt_parse(struct diff_options *options,
                options->flags.rename_empty = 1;
        else if (!strcmp(arg, "--no-rename-empty"))
                options->flags.rename_empty = 0;
-       else if (!strcmp(arg, "--relative"))
+       else if (skip_to_optional_arg_default(arg, "--relative", &arg, NULL)) {
                options->flags.relative_name = 1;
-       else if (skip_prefix(arg, "--relative=", &arg)) {
-               options->flags.relative_name = 1;
-               options->prefix = arg;
+               if (arg)
+                       options->prefix = arg;
        }
 
        /* xdiff options */
-- 
2.15.1.361.g8b07d831d0