Tired of 'foo.h not found' messages in the build.  Checked ms's docs,
  seems xcopy's /y arg goes all the way back to Win95.  This shouldn't
  introduce any hassles.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@94675 13f79535-47bb-0310-9956-ffa450edef68