--- a/mercurial/mpatch_module.c	Sun Aug 07 14:06:20 2016 +0000
+++ b/mercurial/mpatch_module.c	Sun Aug 07 09:49:07 2016 +0900
@@ -48,7 +48,7 @@
 	if ((r = mpatch_decode(buffer, blen, &res)) < 0) {
 		if (!PyErr_Occurred())
 			PyErr_SetString(mpatch_Error, mpatch_errors[-r]);
- 		return NULL;
+		return NULL;
 	}
 	return res;
 }