* win32/win32.c (w32_spawn): r41710 made that if the command starts with
  a quote and includes slash, removed the top quote and NOT removed the
  last quote.
  this fixes test failures on test/ruby/test_process.rb and
  test/webrick.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e