template: document the delimiters better
template: document the delimiters better

R=golang-dev, rsc
CC=golang-dev
http://codereview.appspot.com/4248047

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