main/doas: prevent unnecessary message display during installation
During a fresh installation of the doas package a "migration" message will be displayed unnecessarily. Prevent this being displayed if no /etc/doas.conf file exists to be migrated.
We are currently working on getting Alpine Linux 3.21 out. This means that merge requests that are not aimed to help with that (only affecting testing, new aports) have a lower priority at the moment. Please be patient, they will be eventually picked up.
During a fresh installation of the doas package a "migration" message will be displayed unnecessarily. Prevent this being displayed if no /etc/doas.conf file exists to be migrated.