hd would error out on files that were not a multiple of its read
buffer size (4096). For example:
Read error on init.rc, offset 17040 len 4096, No such file or directory
The fix is to stop reading on EOF instead of treating it as an
error.
Signed-off-by: Scott Anderson <saa@google.com>
(cherry picked from commit a9fac4155f)
Change-Id: Ib2af725fc39e96c2f81559f61979d451604d4817
