Ruby

• lib/tempfile.rb (Tempfile#callback): Debug information should be
  output to stderr, not stdout; pointed out by akira yamada.
  cf. [ruby-dev:39072]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24694 b2dd03c8-39d4-4d8f-98ff-823fe69b080e