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Description of problem:
cmp -b (print bytes) shows incorrect output

Version-Release number of selected component (if applicable):
diffutils-3.6-5.el8

How reproducible:
Always


Steps to Reproduce:
1.echo 'This is some text to play with' >/var/tmp/a
2.echo 'This is some test to play with' >/var/tmp/b
3.cmp -b /var/tmp/a /var/tmp/b

Actual results:
/var/tmp/a /var/tmp/b differ: byte 16, line 1 is  12 ^J 163 s


Expected results:
/var/tmp/a /var/tmp/b differ: byte 16, line 1 is 170 x 163 s


Additional info:

Local rebuild applying this patch from upstream fixes the problem
http://git.savannah.gnu.org/cgit/diffutils.git/commit/?id=ffd63aedad3c0eb08ebb27103e5f242f8732dc0c

I can reproduce the issue with the attached testcase. Pablo, thank for your report.

it's fixed in diffutils-3.6-6.el8

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1853