From: utzoo!henry
Newsgroups: advising
Title: PL inside KE-EK 
Article-I.D.: utzoo.2875
Posted: Wed Mar 16 21:34:51 1983
Received: Wed Mar 16 21:34:51 1983

In format, changing the page length (.PL) inside a keep (.KE-.EK)
can really mess things up.  It can make nroff croak with a very
uninformative message, or do other unkind things like silently
producing no output whatsoever.  This combination cropped up in
an attempt to squeeze a bit more text onto a page (so that a small
change could be incorporated without messing up later pagination).