Bump RDoc patch level to 4.2.1

Zachary Scott · Zachary Scott · commit 24e71d4c2cb6 · 2015-12-22T20:31:53.000+09:00
diff --git a/lib/rdoc.rb b/lib/rdoc.rb
@@ -64,7 +64,7 @@ class Error < RuntimeError; end
   ##
   # RDoc version you are using
 
-  VERSION = '4.2.0'
+  VERSION = '4.2.1'
 
   ##
   # Method visibilities
