patch applied (cabal-install): always check environment variables for HTTP proxy first

[Duncan Coutts]

Tue Feb 10 15:07:36 PST 2009  Ganesh Sittampalam <ganesh.sittampalam at credit-suisse.com>
  * always check environment variables for HTTP proxy first

    M ./Distribution/Client/HttpUtils.hs -7 +11

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20090210230736-e69a7-f20c8b28b0d3f58b5736bb3c85d74be6cae68045.gz