main/apcupsd: remove /etc/nologin on service start
When the system is shut down, /etc/nologin is created. However, it is not removed when the system starts back up. This results in users being unable to log in after a power outage.
When the system is shut down, /etc/nologin is created. However, it is not removed when the system starts back up. This results in users being unable to log in after a power outage.