Fix the exit code of the keepalive notifiy script.

library/roles/keepalived/templates/keepalived_notify.sh.j2

@@ -6,6 +6,7 @@ export PATH="/sbin:/usr/sbin:/bin:/usr/bin:$PATH"
 TYPE=$1
 NAME=$2
 STATE=$3
+RETVAL=0
 
 {% if keepalived_notify_extra_params is defined %}
 {{ keepalived_notify_extra_params }}
@@ -13,8 +14,8 @@ STATE=$3
 
 
 {% if keepalived_nagios_check %}
-echo $TYPE $NAME is in $STATE state > /var/run/keepalive.state
+echo "$TYPE $NAME is in $STATE state" > /var/run/keepalive.state
 {% endif %}
 
-exit 0
+exit $RETVAL