merge: convert checkout_fast_forward to struct object_id

Converting checkout_fast_forward is required to convert
parse_tree_indirect.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/cache.h b/cache.h
index e1f0e182ad..8862510f94 100644
--- a/cache.h
+++ b/cache.h
@@ -2198,8 +2198,8 @@ struct commit_list;
 int try_merge_command(const char *strategy, size_t xopts_nr,
 		const char **xopts, struct commit_list *common,
 		const char *head_arg, struct commit_list *remotes);
-int checkout_fast_forward(const unsigned char *from,
-			  const unsigned char *to,
+int checkout_fast_forward(const struct object_id *from,
+			  const struct object_id *to,
 			  int overwrite_ignore);