Origin for each line in rc from check-in f8700c9031:

17041521b1 2019-10-23    1: #!/sbin/sh -Tue -
17041521b1 2019-10-23    2: 
17041521b1 2019-10-23    3: stty status '^T'
17041521b1 2019-10-23    4: 
17041521b1 2019-10-23    5: trap : 2
17041521b1 2019-10-23    6: 
17041521b1 2019-10-23    7: HOME=/
17041521b1 2019-10-23    8: PATH=/sbin:/bin:/usr/sbin:/usr/bin
17041521b1 2019-10-23    9: 
17041521b1 2019-10-23   10: export PATH HOME
17041521b1 2019-10-23   11: 
f8700c9031 2022-05-29   12: MAKEINIT="make -D AUTOBOOT -C /etc/mrc"
f8700c9031 2022-05-29   13: NCPU=$((`/sbin/sysctl -n hw.ncpu` + 1 ))
f8700c9031 2022-05-29   14: #MAKEDEBUG="-d -nelLx"
f8700c9031 2022-05-29   15: 
f8700c9031 2022-05-29   16: mount -t tmpfs tmpfs /etc/mrc/tmp && ${MAKEINIT} -j ${NCPU} ${MAKEDEBUG} -X TMPDIR=/etc/mrc/tmp && umount /etc/mrc/tmp || ${MAKEINIT}
17041521b1 2019-10-23   17: 
17041521b1 2019-10-23   18: echo ''
17041521b1 2019-10-23   19: date
17041521b1 2019-10-23   20: exit 0