Change the output for Reporter::Spec.

-    Feature Foo → Scenario Normal →  Then the number of array is 1:
+    Feature Foo
+      Scenario Normal
+         Then the number of array is 1:
Checking in changes prior to tagging of version 0.21.

Changelog diff is:

diff --git a/Changes b/Changes
index b42e8fa..4a80034 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Test-Kantan

 {{$NEXT}}

+0.21 2014-03-09T13:41:43Z
+
+    - Change message group title display format in Reporter::Spec.
+      (tokuhirom)
+
 0.20 2014-03-09T13:07:43Z

     - Refactor interface.