Origin for each line in dmesg.init from check-in 3e8f3b3326:

5062c9b6fc 2019-10-19        arcade: # vim:ft=make:
5062c9b6fc 2019-10-19        arcade: 
8f80b79392 2019-10-20        arcade: DMESG_FILE?=/var/run/dmesg.boot
5062c9b6fc 2019-10-19        arcade: 
5062c9b6fc 2019-10-19        arcade: dmesg: mountlate
5062c9b6fc 2019-10-19        arcade: 	: Writing dmesg.
3e8f3b3326 2019-10-20        arcade: 	umask 022 ; dmesg -a >> ${DMESG_FILE}