running the perl version of cops produces error
need: Can't open need and later -S: invalid option

Fix: This fix uses perl4 (in /usr/bin); the original perl script
looks for perl in /usr/local/bin.  If perl5 is used a few additional
changes are needed in the script; perl complains about precedence
in the following lines, where parens are needed around CONFIG, FILE1,
and FILE2 (roughly lines 86, 223, and 224, I think):

open CONFIG || die "can't open $CONFIG: $!";
    open FILE1 || die "can't open $FILE1: $!\n";
    open FILE2 || die "can't open $FILE2: $!\n";

For perl4:
How-To-Repeat: run perl version of cops from /cops/perl directory,
i.e., /usr/local/cops/perl/cops