patch applied (cabal-install): Change the interface of the two package index search functions

[Duncan Coutts]

Sun Jan 23 11:37:06 PST 2011  Duncan Coutts <duncan at community.haskell.org>
  * Change the interface of the two package index search functions
  Move the ambiguity checking to the only use site
  Both normal and substring search now return [(PackageName, [pkg])]

    M ./Distribution/Client/IndexUtils.hs -7 +17
    M ./Distribution/Client/List.hs -3 +8
    M ./Distribution/Client/PackageIndex.hs -16 +15

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal-install;a=darcs_commitdiff;h=20110123193706-5c91e-ce415ef26c9525624e9aeb398fd125645eb1ff56.gz