add newline to hm_addons.cfg if necessary

Author: hobbyquaker

addon_files/update_script

@@ -24,6 +24,11 @@ fi
 
 touch $CONF_DIR/hm_addons.cfg
 sed -i '/node-red/d' $CONF_DIR/hm_addons.cfg
+x=$(tail -c 1 $CONF_DIR/hm_addons.cfg)
+if [ "$x" != "" ]
+then
+    echo >> $CONF_DIR/hm_addons.cfg
+fi
 echo "node-red {CONFIG_URL /addons/red CONFIG_DESCRIPTION {de {<li>Node-RED</li>} en {<li>Node-RED</li>}} ID node-red CONFIG_NAME Node-RED}" >> $CONF_DIR/hm_addons.cfg
 echo "node-red-dashboard {CONFIG_URL /addons/red/ui CONFIG_DESCRIPTION {de {<li>Node-RED Dashboard UI</li>} en {<li>Node-RED Dashboard UI</li>}} ID node-red-dashboard CONFIG_NAME \"Node-RED Dashboard\"}" >> $CONF_DIR/hm_addons.cfg