Implement a "full reader" wrapper for io.Read, guaranteeing that either the buffer is full, zero bytes were read, or an error is returned.
Implement a "full reader" wrapper for io.Read, guaranteeing that
either the buffer is full, zero bytes were read, or an error is returned.

R=rsc
DELTA=44  (42 added, 0 deleted, 2 changed)
OCL=19027
CL=19047

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