patch applied (packages/Cabal): Add Text instance for License

[Ian Lynagh]

Thu Mar 20 22:38:11 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add Text instance for License
  Initially it's exactly the same format as Read/Show.
  We can make it more liberal later.

    M ./Distribution/InstalledPackageInfo.hs -1 +1
    M ./Distribution/License.hs +7
    M ./Distribution/PackageDescription/Parse.hs -1 +1
    M ./Distribution/ParseUtils.hs -1 +1

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080321053811-adfee-6f5c3024e174ae453fba490df1914952e97b49b8.gz