Ignore that one.... seems that doesn't work
$ ansible-playbook -i hosts.localhost handlertest.yml -l localhost --skip-tags=handler
PLAY ***************************************************************************
TASK [Create a file] ***********************************************************
changed: [localhost]
RUNNING HANDLER [notifytest] ***************************************************
ok: [localhost] => {
"msg": "Handler being run"
}
PLAY RECAP *********************************************************************
localhost : ok=2 changed=1 unreachable=0 failed=0