fixes to spec.  mostly minor but several of significance. - carriage return is white space - "" strings cannot span newlines - f(g()) is ok if g is multivalue and matches f's args
fixes to spec.  mostly minor but several of significance.
- carriage return is white space
- "" strings cannot span newlines
- f(g()) is ok if g is multivalue and matches f's args

R=rsc, gri
CC=go-dev
http://go/go-review/1024017

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