Merge r1442412 from trunk:

Fix  incomplete filename in ErrorLog when trying to access files in non existing directories
PR39944
Submitted by: jailletc36
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1443076 13f79535-47bb-0310-9956-ffa450edef68