--- a/mercurial/parsers.c	Thu Dec 31 08:16:59 2015 +0000
+++ b/mercurial/parsers.c	Thu Dec 31 08:17:15 2015 +0000
@@ -1840,7 +1840,7 @@
 	if (node_check(val, &node, &nodelen) == -1)
 		return NULL;
 	rev = index_find_node(self, node, nodelen);
-	if (rev ==  -3)
+	if (rev == -3)
 		return NULL;
 	if (rev == -2)
 		Py_RETURN_NONE;