* lib/cgi/util.rb: Constant parameter is faster and economy than
  string parameter.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40788 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix a dependency.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e