I ran into one I can't really seem to find any info on....
"Short Read: wanted"
-> http://cgi-lib.berkeley.edu/ex/cgi-lib.pl

"Short Read: wanted" site:cpan.org
-> http://search.cpan.org/src/FPIVARI/GraphMaker-2.1/cgi-lib.pl

if (($got = read(STDIN, $in, $len) != $len))
      {$errflag="Short Read: wanted $len, got $got\n";};
    } else {
      &CgiDie("cgi-lib.pl: Unknown request method: $meth\n");
    }
[download]

When running the script below, I get Short Read:
No, that error is coming from something using cgi-lib.pl