patch applied (cabal): "Fix fallout of Num / Show class changes in ghc-7.4"

[Duncan Coutts]

Thu Nov  3 17:25:10 PDT 2011  Duncan Coutts <duncan at community.haskell.org>
  * Fix fallout of Num / Show class changes in ghc-7.4

    M ./cabal-install/Distribution/Client/Tar.hs -1 +1

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=20111104002510-5c91e-92810a90e395c140984ba7f1e454e4da10f7a08d.gz