Add a friendlier message if tftp service is running
Add a friendlier message if tftp service is running

The socket activation may fail due to tftp already running.

xcat2/confluent,jjohnson42/confluent,jjohnson42/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent,jjohnson42/confluent