Updated the McCarthy 91 function example (by Ana Bove).
Updated the McCarthy 91 function example (by Ana Bove).

Ignore-this: 4415846248f61a58bb63c0a22b669b29

darcs-hash:20110208222623-3bd4e-4c574bc56ced1aea427b8b178cbb339c18c01753.gz

asr/fotc,asr/fotc