Origin for each line in cleanvar.init from check-in aea391e34e:

aea391e34e 2019-10-19    1: # vim:ft=make:
aea391e34e 2019-10-19    2: 
aea391e34e 2019-10-19    3: CLEANVAR_DIRS?=/var/run /var/spool/lock /var/spool/uucp/.Temp
aea391e34e 2019-10-19    4: 
aea391e34e 2019-10-19    5: cleanvar: mount
aea391e34e 2019-10-19    6: .for dir in ${CLEANVAR_DIRS}
aea391e34e 2019-10-19    7: 	find ${dir} -mindepth 1 -delete
aea391e34e 2019-10-19    8: .endfor
aea391e34e 2019-10-19    9: 	install -m644 /dev/null /var/run/utmpx