net/dict: parse response correctly + typo
net/dict: parse response correctly + typo

* SHOW DB responds with a
  "110 n databases present - text follows" -- parse it.
* Doing a Define() on a non-existing word gives error
  "invalid definition count: no", when we really
  want "552 no match".

R=rsc
CC=golang-dev
http://codereview.appspot.com/2211041

Committer: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

scirelli/scirelli-go,rdp/rogerpack2005-golang,sanjosh/sanjos100-tipc,npe9/noahevans-go9,sanjosh/sanjos100-tipc,webfd/go-zh,mhennings/marcohennings-go,Triskite/willstone-goclone,mhennings/marcohennings-go,npe9/noahevans-go9,d0f/go-zh,bryanxu/go-zh,rdp/rogerpack2005-golang,sanjosh/sanjos100-tipc,bryanxu/go-zh,rdp/rogerpack2005-golang,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,webfd/go-zh,rflanagan/reginaldflanagan-project1,rdp/rogerpack2005-golang,d0f/go-zh,Triskite/willstone-goclone,Triskite/willstone-goclone,glycerine/jeaten-go-arrayof-structof,rflanagan/reginaldflanagan-project1,sanjosh/sanjos100-tipc,glycerine/jeaten-go-arrayof-structof,bryanxu/go-zh,npe9/noahevans-go9,webfd/go-zh,mhennings/marcohennings-go,sanjosh/sanjos100-tipc,npe9/noahevans-go9,d0f/go-zh,d0f/go-zh,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,rflanagan/reginaldflanagan-project1,npe9/noahevans-go9,rflanagan/reginaldflanagan-project1,Triskite/willstone-goclone,npe9/noahevans-go9,rflanagan/reginaldflanagan-project1,bryanxu/go-zh,scirelli/scirelli-go,d0f/go-zh,glycerine/jeaten-go-arrayof-structof,npe9/noahevans-go9,rdp/rogerpack2005-golang,sanjosh/sanjos100-tipc,sanjosh/sanjos100-tipc,bryanxu/go-zh,d0f/go-zh,webfd/go-zh,Triskite/willstone-goclone,glycerine/jeaten-go-arrayof-structof,scirelli/scirelli-go,rflanagan/reginaldflanagan-project1,webfd/go-zh,webfd/go-zh,Triskite/willstone-goclone,scirelli/scirelli-go,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,d0f/go-zh,scirelli/scirelli-go,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,webfd/go-zh,sanjosh/sanjos100-tipc,Triskite/willstone-goclone,bryanxu/go-zh,d0f/go-zh,npe9/noahevans-go9,scirelli/scirelli-go,Triskite/willstone-goclone,scirelli/scirelli-go,rdp/rogerpack2005-golang,scirelli/scirelli-go,rdp/rogerpack2005-golang,rdp/rogerpack2005-golang,webfd/go-zh,mhennings/marcohennings-go