Ruby

• lib/optparse.rb (Regexp): fix incorrect options when casting to
  a Regexp, and suppress encoding option warnings.
  https://github.com/ruby/ruby/pull/82

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@34316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e