Change usage of perror()+fprintf(stderr,...) in mod_rewrite to more proper

ap_log_error() variants. Same Brian has done for the other modules, BTW.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81408 13f79535-47bb-0310-9956-ffa450edef68