Silence build warning about missing prototype.
Followup to r1629507.


git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1629652 13f79535-47bb-0310-9956-ffa450edef68
Fix link

git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1629730 13f79535-47bb-0310-9956-ffa450edef68