Merge r1775770 from trunk:

pass along error buckets

In 2.4, they are generated by LimitRequestBody failures. trunk no 
longer uses error buckets in this path, but someone else could.

PR60375

Submitted By: Eric Covener,Lubos Uhliarik <luhliari  redhat.com>
Committed By: covener



Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1775832 13f79535-47bb-0310-9956-ffa450edef68