[PATCH v2 36/42] cache-tree: use is_empty_tree_oid

[brian m. carlson]

When comparing an object ID against that of the empty tree, use the
is_empty_tree_oid function to ensure that we abstract over the hash
algorithm properly.  In addition, this is more readable than a plain
oidcmp.

Signed-off-by: brian m. carlson <sand...@crustytoothpaste.net>
---
 cache-tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cache-tree.c b/cache-tree.c
index 8c7e1258a4..25663825b5 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -385,7 +385,7 @@ static int update_one(struct cache_tree *it,
                /*
                 * "sub" can be an empty tree if all subentries are i-t-a.
                 */
-               if (contains_ita && !oidcmp(oid, &empty_tree_oid))
+               if (contains_ita && is_empty_tree_oid(oid))
                        continue;
 
                strbuf_grow(&buffer, entlen + 100);