Change Alerta environments to lowercase

templates/health_alarm_notify.conf

@@ -106,7 +106,7 @@ ALERTA_API_KEY="{{ netdata_alerta_apikey|default('') }}"
 # standard environments are Production and Development
 # if a role's recipients are not configured, a notification will be send to
 # this Environment (empty = do not send a notification for unconfigured roles):
-DEFAULT_RECIPIENT_ALERTA="{{ netdata_alerta_environment|default('Production') }}"
+DEFAULT_RECIPIENT_ALERTA="{{ netdata_alerta_environment|default('production') }}"
 
 #------------------------------------------------------------------------------
 # email global notification options