Allow local in virtualisation.docker.logDriver?

virtualisation.docker.logDriver

allows one of "none", "json-file", "syslog", "journald", "gelf", "fluentd", "awslogs", "splunk", "etwlogs", "gcplogs"

Any reason not to allow / use local as described below?

@offlinehacker @vdemeester @periklis @mikroskeem @maxeaubrey

https://github.com/NixOS/nixpkgs/issues/213603