Verbose error messages are so much more useful to our users... and to

us as well because they can avert "bug" reports.  Fix a few more... there's
dozens more that could do with improvements.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80706 13f79535-47bb-0310-9956-ffa450edef68