RFE: hash-type in sum utils

[Ondrej Oprala]

Hello,
  I'd like to consult this RFE 
http://lists.gnu.org/archive/html/bug-coreutils/2009-11/msg00341.html and
  find out if my proposed solutions would be satisfactory. There shouldn't be a 
problem with printing the
  hash-type prefix before printing the generated hash. My concerns are more 
with the hash utils' logic
  during hash check. Should the utils recognize the prefix/prefixless version 
of the input on their own
  or should they require the proposed '-l' switch during the checking as well? 
Personally, I'd lean more
  towards the idea of automatic prefix recognition, which shouldn't be too hard 
to implement and would probably
  feel more natural to everyone.
  Cheers,
   Ondrej Oprala