See merge request !4

and other improvements

See merge request teichman/ebpfcat!3

this is for debugging

this doubles the number of packages in the loop, but is an
effective measure against package loss

not very well tested, but a step in the right direction, I hope

not so great, though

addresses in memory look like 32 bit values but are actually 64 bit

although this is not actually in ebpfcat

the former way used to work on some terminals, but not on all

See merge request teichman/ebpfcat!2