* win32/file.c (rb_file_expand_path_internal): do not make invalid
(or ADS) path if the path has a drive letter, the result also
should have be under it. [ruby-core:68130] [Bug #10858]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e