Improve /etc/sshd:
Improve /etc/sshd:

. Create ed25519 key for ssh and silent daemon
. Remove some exec() calls
. We do not need to re-create all keys if /root/.ssh/authorized_keys is
  empty
. Remove some redundancy and declare a single array with all keys

pfsense/pfsense,pfsense/pfsense,phil-davis/pfsense,dennypage/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,pfsense/pfsense,BlackstarGroup/pfsense,NOYB/pfsense,ptorsten/pfsense,NewEraCracker/pfsense,jxmx/pfsense,NOYB/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,ch1c4um/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,brunostein/pfsense,jxmx/pfsense,dennypage/pfsense,brunostein/pfsense,dennypage/pfsense,pfsense/pfsense,ptorsten/pfsense,ptorsten/pfsense,dennypage/pfsense,jxmx/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,brunostein/pfsense,ch1c4um/pfsense,NOYB/pfsense