satmap: Separate and align columns in output properly
Land unit coordinates run into efficiency in output of satellite when
the y coordinate is wider than three characters. Broken in Empire 2.
Restore the separating space.
Both ship and land unit table header aren't aligned with the table
body. Affects recon and sweep with spy planes, and satellite. Fix
the header.
Reported-by: William Fittge <ptkei2@gmail.com> Signed-off-by: Markus Armbruster <armbru@pond.sub.org>