When kfcgi processes a SIGHUP, don't let child exits cause us to exit when we next re-enter the wait loop.  (In fixed pool mode.)  This from a modified patch https://github.com/kristapsdz/kcgi/pull/3 by https://github.com/cornett -- thanks so much!
When kfcgi processes a SIGHUP, don't let child exits cause us to exit
when we next re-enter the wait loop.  (In fixed pool mode.)  This from a
modified patch https://github.com/kristapsdz/kcgi/pull/3 by
https://github.com/cornett -- thanks so much!

kristapsdz/kcgi,kristapsdz/kcgi