cse.c bug

[Joe Buck]

> Before I get more E-Mails asking what Checker is, here is its
> description from the Linux GNU/Debian package:

For those that have used Purify, Checker is a semi-clone.  It differs
in that Purify can work with .o files, modifying them to produce new
.o files, while Checker adds the debug code by modifying the assembler,
but other than that, their design is much the same.

[ An exact clone would infringe a patent :-( ].