ruby.c: transcode program names
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ruby.c: transcode program names
program name to locale encoding as well as argv.
[ruby-dev:48752] [Bug #10555]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e