error.c: prepend "warning: " always
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63062 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
error.c: prepend "warning: " always
keyword is given, even if caller file and line information are
not available.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63062 b2dd03c8-39d4-4d8f-98ff-823fe69b080e