Exit ganeti-watcher cleanly when there's no configuration.
Exit ganeti-watcher cleanly when there's no configuration.

Reviewed-by: iustinp



onponomarev/ganeti,apyrgio/snf-ganeti,mbakke/ganeti,mbakke/ganeti,mbakke/ganeti,yiannist/ganeti,andir/ganeti,andir/ganeti,apyrgio/ganeti,onponomarev/ganeti,leshchevds/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,andir/ganeti,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,grnet/snf-ganeti,bitemyapp/ganeti,grnet/snf-ganeti,apyrgio/snf-ganeti,dimara/ganeti,bitemyapp/ganeti,yiannist/ganeti,leshchevds/ganeti,dimara/ganeti,ganeti/ganeti,ganeti/ganeti,ganeti/ganeti