Add a status value to ap_log_error and ap_log_rerror. This allows us to use

apr_status codes in our error logs.  The main advantage of this, is portable
error codes.  Now, Windows will finally be able to use errno!


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@84007 13f79535-47bb-0310-9956-ffa450edef68