Fix the seg fault in mod_status.c. This changes the up_time to an

interval_time.  The segfault is caused by apr_vformatter not understanding
%lld, so we also had to change that to %qd, which solves that problem.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88176 13f79535-47bb-0310-9956-ffa450edef68