Fix FakeBasicAuth for subrequests. This was reported via issue

#1364 in Subversion:

  http://subversion.tigris.org/issues/show_bug.cgi?id=1364

The fix is to make mod_ssl's check_user_id hook stop tripping
over it's own checks in case of a subrequest.  That is, it
should DECLINE in case of a subrequest.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@100926 13f79535-47bb-0310-9956-ffa450edef68