The new syntax allows specifying a preferred version rather than just
the worst required baseline.

Also, versions <3.1 are no longer relevant, thus we can drop compat.

added ppc64le arch on yml file.

colorized-logs/pipetty.c:106:13: warning: missing sentinel in function call [-Wformat=]
             execlp("less", "less", "-R", "-", 0);

So you can test installed binaries.

There's too many bogus and mutually contradicting standards, and of course
we don't implement many of them.  Anything widespread in common terminals,
though, should work -- and if not, that's a bug.

Not sure if we should forbid near-matches as well (ie, extremely dark gray
on black)?

Closes #3

This allows git or dmesg -H work right out of the box, I can't think of a
valid use for other values of $PAGER.

Closes #2

Speeds up by over four times if the frames are small.