V.4 cc bug is also a V.4 cc bug

[Ron Guilmette]

With regard to my previously reported V.4 cc bug, the reports that I have
received indicate that this bug is endemic to most (or all) versions of cc
which were derived from the AT&T porting base for the CI5 C compiler.

Additionally, markhall at pyrps5.pyramid.com (Mark Hall) notes that the bug
in question also affects the V.4 `lint' program (which shares some code
with the V.4 CI5 C compiler).