Patch merged into coreboot/master: lib/hexdump: Add xxd hint

the following patch was just integrated into master:
commit 1b0ab813036b45a3d760112f831d41772b81f882
Author: Lee Leahy 
Date:   Thu May 14 14:50:42 2015 -0700

lib/hexdump: Add xxd hint

For people new to Linux, add the xxd hint to compare output with output
    from Linux.

BRANCH=none
    BUG=None
    TEST=Build and run on cyan

Change-Id: Ia46aeed056b12abbadf8205b044944385d9410e1
    Signed-off-by: Lee Leahy 
    Reviewed-on: http://review.coreboot.org/10207
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/10207 for details.

-gerrit