/Makefile/1.3/Thu Nov 17 07:55:57 1994//
/extern.h/1.1/Tue Feb 10 23:06:31 2009//
/foldit.c/1.7/Tue Feb 10 23:06:31 2009//
/vis.c/1.25/Mon May 25 03:32:09 2015//
/vis.1/1.25/Sun Feb 21 03:02:00 2021//
D