diff.c: return filepair from diff_unmerge()

The underlying diff_queue() returns diff_filepair so that the caller can
further add information to it, and the helper function diff_unmerge()
utilizes the feature itself, but does not expose it to its callers, which
was kind of selfish.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/diff.h b/diff.h
index bf2f44d840..f51a8ee1b2 100644
--- a/diff.h
+++ b/diff.h
@@ -209,7 +209,7 @@ extern void diff_change(struct diff_options *,
 			const char *fullpath,
 			unsigned dirty_submodule1, unsigned dirty_submodule2);
 
-extern void diff_unmerge(struct diff_options *,
+extern struct diff_filepair *diff_unmerge(struct diff_options *,
 			 const char *path,
 			 unsigned mode,
 			 const unsigned char *sha1);