Ruby

• lib/rexml/parsers/baseparser.rb, test/rexml/test_comment.rb:
  allow a single hyphen in comment. [Bug 5278]
  Reported by Thomas Fritzsche. Thanks!!!

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e