* win32/file.c (code_page): use cp1252 instead of cp20127 as US-ASCII.
  fix [ruby-core:53079] [Bug #7996]
  reported and patched by mmeltner (Michael Meltner).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40003 b2dd03c8-39d4-4d8f-98ff-823fe69b080e