qa/standalone/scrub: fix expected output in EC repair tests

Specifically - TEST_corrupt_scrub_erasure_* in osd-scrub-repair.sh.
This is required following recent changes to the EC code.

Fixes: https://tracker.ceph.com/issues/70851
Signed-off-by: Ronen Friedman <[email protected]>
(cherry picked from commit 3aceb1f)

Author: ronen-fr