Correct a problem with tables at very small widths
Correct a problem with tables at very small widths

Gertty would crash if the screen was narrower than the widest column
in a table.  This corrects that.

Change-Id: Ie0a2c6fae16c7c484edb6724fa5dd5f79065e94f

stackforge/gertty,aspiers/gertty,openstack/gertty