cutoff level: Add FIXME comments to narrow coordinate columns

cutoff level: Add FIXME comments to narrow coordinate columns

When formatting coordinates for fixed-width output, the width should
be at least four characters.

cutoff was fine until 4.0.2 reduced coordinate width to three to make
space for civilian and military delivery thresholds.

level has always used width three.

Can't fix either without making lines too long or dropping
information, so just document the problem for now.

Signed-off-by: Markus Armbruster <armbru@pond.sub.org>