git: update to v2.15.1

Update to git version v2.15.1: With commit 0abe14f6 prepare_packed_git()
moved to packfile.[ch].

Signed-off-by: Christian Hesse <mail@eworm.de>
Reviewed-by: John Keeping <john@keeping.me.uk>

1 file changed, 1 insertion, 0 deletions

diff --git a/ui-clone.c b/ui-clone.c
index 0d11672..bc98980 100644
--- a/ui-clone.c
+++ b/ui-clone.c
@@ -11,6 +11,7 @@
 #include "ui-clone.h"
 #include "html.h"
 #include "ui-shared.h"
+#include "packfile.h"
 
 static int print_ref_info(const char *refname, const struct object_id *oid,
                           int flags, void *cb_data)