test_rubyoptions.rb: non-codepage names glob

* test/ruby/test_rubyoptions.rb (test_command_line_glob_noncodepage):
  more assertion for fallback replacement on non-codepage names.
  [ruby-dev:48752] [Bug #10555]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48717 b2dd03c8-39d4-4d8f-98ff-823fe69b080e