General whitespace cleanup, error message normalization, and style conformance

for 80 character folding and legibility.

Folds several identical errors into the same APLOGNO() groups.

Catches several errors which were missing APLOGNO() entries, in the
existing groups and in one new message.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1611165 13f79535-47bb-0310-9956-ffa450edef68