pgsql-server: Whack Wisconsin benchmark around until it actually works

Log Message:
-----------
Whack Wisconsin benchmark around until it actually works again.
It's still useless because it tests a standalone backend, but at least
the bit rot is repaired.

Modified Files:
--------------
    pgsql-server/src/test/bench:
        Makefile (r1.10 -> r1.11)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/bench/Makefile.diff?r1=1.10&r2=1.11)
        WISC-README (r1.1.1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/bench/WISC-README.diff?r1=1.1.1.1&r2=1.2)
        create.sh (r1.3 -> r1.4)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/bench/create.sh.diff?r1=1.3&r2=1.4)
        perquery (r1.1.1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/bench/perquery.diff?r1=1.1.1.1&r2=1.2)
        runwisc.sh (r1.5 -> r1.6)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/bench/runwisc.sh.diff?r1=1.5&r2=1.6)