tree-diff: don't access hash of NULL object_id pointer

diff --git a/bisect.c b/bisect.c
index bb5af3ea3d6761d4fe67086abc69401e44835275..d88f9bc3dc1f78535b8a801c7f123340bb9c161a 100644 (file)
--- a/bisect.c
+++ b/bisect.c
@@ -546,7 +546,7 @@ static unsigned get_prn(unsigned count) {
 
 /*
  * Custom integer square root from
- * http://en.wikipedia.org/wiki/Integer_square_root
+ * https://en.wikipedia.org/wiki/Integer_square_root
  */
 static int sqrti(int val)
 {