ref: 407f29c46f35910ce3d7ddd41f13e94213c2597e
parent: 9249f096192b0a50e607024bf04736ef0506b5ea
author: Simon Tatham <anakin@pobox.com>
date: Sun Feb 22 07:05:38 EST 2009
Introduce some infrastructure to permit games' print functions to draw dotted lines. No puzzle yet uses this, but one's about to. [originally from svn r8453]