This allows gitweb users to set $projects_list_description_width
in their gitweb.conf to determine how many characters of a project
description are displayed before being truncated with an ellipsis.
Signed-off-by: Michael Hendricks <michael@ndrix.org> Acked-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>