lib.bash: merge msg and fmsg
lib.bash: msg(): let caller specify text color
merge status() in lib.bash and `backup`
mklinux: use status() instead of custom log()
mklinux: wrap some code in functions
nolid: do not increase $LVL
nolid: do increase $LVL but reset it before running the program
lib.bash: append caller name for $DEBUG ≥ 2
lib.bash: log the right invoker path