https://svn.apache.org/r1891200
2.4.x patch: svn merge -c 1817063,1831165,1831171,1831172,1849590,1849630,1856491,1883421,1889327,1891200 ^/httpd/httpd/trunk .
+1: jailletc36
+ icing: I have trouble running the svn merge due to conflicts in CHANGES and
+ the infamous log tags. Do you have a patch or a PR to use for checking?
*) core: add hook 'child_stoppingthat gets called when the MPM is stopping a
child process. The additionalgraceful` parameter allows registered hooks