Bump yell to 2.2.1

Rudolf Schmidt · Rudolf Schmidt · commit 26d42a7b3ccb · 2020-02-16T22:02:38.000+01:00
diff --git a/lib/yell/version.rb b/lib/yell/version.rb
@@ -1,4 +1,4 @@
 module Yell #:nodoc:
-  VERSION = "2.2.0"
+  VERSION = "2.2.1"
 end
 
