Why does sshd claims about missing /etc/ssh/ssh_host_dsa_key on start and every time someone connect via ssh to the system in the syslog?

Issue

• Does Red Hat assume that a dsa host key is deprecated and should not longer be used? If not, why does Red Hat deliver a enterprise system that floods the syslog with error messages by Default configuration? If yes, how we get rid of the message if we do not create a das key (your solution 1486393 does not provide this information)