relnotes/next

--- a/relnotes/next	Wed Apr 24 09:32:29 2019 -0700
+++ b/relnotes/next	Mon May 15 00:12:19 2017 -0700
@@ -29,3 +29,6 @@
 == Internal API Changes ==
 
  * Matchers are no longer iterable. Use `match.files()` instead.
+
+ * `match.visitdir()` and `match.visitchildrenset()` now expect the
+   empty string instead of '.' to indicate the root directory.