Bug#272531: apache2-common: force-reload does not retain SSL define.
The startup script as shipped with apache2-common fires up apache2 with
-DSSL when called with argument "start", but doesn't pass this argument
to the apache2ctl calls that are used in various other targets, most
notably in the force-reload target, which in turn is called from the mpm
postinsts. This potentially breaks a user's SSL setup on package
upgrades. (It certainly breaks mine.)