Bring the memory output inline with the suggestions in #3465.
Bring the memory output inline with the suggestions in #3465.

Excess bytes, when one block is longer than the other, are not explicitly
highlighted.

The NULL / zero length block output has been cleaned up.

Reviewed-by: Andy Polyakov <015edf36635e030d5e009e08808a59984e629740@openssl.org>
Reviewed-by: Rich Salz <c04971a99e5a9ee80eaab4b1deb37e845b0bd697@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3515)
openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl