fix typo in blob read buffer size in diff_blobs()
diff --git a/got/got.c b/got/got.c
index 16e9b0f..c8a1143 100644
--- a/got/got.c
+++ b/got/got.c
@@ -531,7 +531,7 @@ diff_blobs(struct got_object *obj1, struct got_object *obj2,
err = got_object_blob_open(&blob1, repo, obj1, 8192);
if (err)
goto done;
- err = got_object_blob_open(&blob2, repo, obj2, 81992);
+ err = got_object_blob_open(&blob2, repo, obj2, 8192);
if (err)
goto done;