Merge r165151 from trunk:

* modules/mappers/mod_userdir.c (get_suexec_id_doer): Fix allocation
size.

PR: 34588
Reviewed by: jorton, bnicholes, trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@189561 13f79535-47bb-0310-9956-ffa450edef68