minil migrate
return undef if user passed undef
Checking in changes prior to tagging of version 0.11.

Changelog diff is:

diff --git a/Changes b/Changes
index 39c13dd..1126ee0 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Lingua::JA::Regular::Unicode

 {{$NEXT}}

+0.11 2013-05-07T04:53:41Z
+
+    - return undef if argument is undef.
+      (tokuhirom)
+
 0.10

     - doc enhancements