Rogue looping

[utzoo!watmath!bstempleton]

The code published has some merit, but the following should be noted:

1) Does it setgid(getgid()) anywhere?  We don't want the game running
setgid to daemon or games if it doesn't know what it is doing.  For example,
it might create shells for people like rogue.

2) Our rogue hang problem had nothing to do with the process not getting
any cycles.  These hung guys were getting almost all the cycles in the machine.
One burned up around 7 hours of cpu until killed, and this on a 780.
They only responded to kill -9
We don't run rogue niced anyway.