Origin for each line in dumpon.init from check-in 5062c9b6fc:

5062c9b6fc 2019-10-19        arcade: # vim:ft=make:
5062c9b6fc 2019-10-19        arcade: 
5062c9b6fc 2019-10-19        arcade: DUMPDEV?=no
5062c9b6fc 2019-10-19        arcade: 
5062c9b6fc 2019-10-19        arcade: dumpon: random
5062c9b6fc 2019-10-19        arcade: .if empty(${DUMPDEV:tl:Mno})
5062c9b6fc 2019-10-19        arcade: 	: Setting dumpon device.
5062c9b6fc 2019-10-19        arcade: 	dumpon -v ${DUMPDEV}
5062c9b6fc 2019-10-19        arcade: .endif