oeqa: reproducible: Fix test not producing diffs
Diffoscope changed the --exclude-directory-metadata option to require an
argument.
Add a test to validate that diffoscope is functioning as
expected to ensure that future upgrades do not unintentionally break
the reproducibility tests.
[YOCTO #14025]
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
ea8fbcb7978ce48d7a9a83143d09402329535f86)
Signed-off-by: Steve Sakoman <steve@sakoman.com>