This is pretty minor, but: 1. I just noticed that both grdc.c and grdc.6 (in src/games/grdc) say "Copyright 2002 Amos Shapir. Public domain." The US Copyright Office says[1], essentially, that copyright and public domain are mutually exclusive categories.
2. I found a message from Theo in the archives from 2003[2] listing grdc as one of the items of which the license was clarified during an audit. 3. I vaguely remember that it may not be possible to place something in the public domain in some countries. Is the somewhat strange notice because of #3 (or is #3 even true)? Or is the notice misworded? Or...? [1] http://www.copyright.gov/help/faq/faq-definitions.html [2] http://marc.info/?l=openbsd-misc&m=104570938124454&w=2