dd blocks/bytes at a time

[Dan Jacobson]

On both the dd man and Info pages, we see
       count=BLOCKS
              copy only BLOCKS input blocks
OK, but one must use ones brain, heavens forbid, to figure out that
e.g., these

       bs=BYTES
              force ibs=BYTES and obs=BYTES

       ibs=BYTES
              read BYTES bytes at a time

change the block size. Because you don't say that that is what they
do. You just say "bytes at a time", and the user has to figure out the
connection to BLOCKS and them.