Merge r1422375 from https://svn.apache.org/repos/asf/httpd/httpd/trunk/:

PR54308: aliasmatch ^/foo matches requests for ////foo




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1422376 13f79535-47bb-0310-9956-ffa450edef68