misc centos 8 fixes
While setting up a CentOS 8 server in our multiserver setup I've stumbled across a few minor issues which this MR should fix.
Regarding the fpm fix I'am not 100% sure if this one is still required. In a VM setup with CentOS 8 php-fpm worked with and without the fix. Not sure about the previous CentOS versions like EL7 and EL6. Maybe I can find some time this, or next week to verify this also for the other two distro versions.