Multiple trivial fixes from Christophe JAILLET

PR 38699, 39518, 42005, 42006, 42007, 42008, 42009
The patches are all his, and are sufficiently trivial to review
at a glance.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@557837 13f79535-47bb-0310-9956-ffa450edef68