[ruby/optparse] bump up to 0.1.1

https://github.com/ruby/optparse/commit/2fe984a603

lib/optparse.rb

@@ -419,7 +419,7 @@
 # have any questions, file a ticket at http://bugs.ruby-lang.org.
 #
 class OptionParser
-  OptionParser::Version = "0.1.0"
+  OptionParser::Version = "0.1.1"
 
   # :stopdoc:
   NoArgument = [NO_ARGUMENT = :NONE, nil].freeze