Add a couple of GCC attribute tags to printf style functions. This also

fixes a couple of mismatched parameters highlighted revealed by the
attribute.
Submitted by:   Jon Travis <jtravis@covalent.net>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88271 13f79535-47bb-0310-9956-ffa450edef68