qa: use sudo when rsyncing /usr so we can read everything

Signed-off-by: Greg Farnum <greg@inktank.com>
(cherry picked from commit fa07c04231db2d130de54647957ffab4a7a53733)
ReplicatedPG: writeout hit_set object with correct prior_version

Fixes: #9875
Backport: giant, firefly
Signed-off-by: Samuel Just <sam.just@inktank.com>
Merge pull request #2766 from dachary/wip-9408-buffer-alignment-giant

erasure-code: buffer alignment (giant)

Reviewed-by: Samuel Just <sam.just@inktank.com>
Merge pull request #2785 from athanatos/wip-9821

PG:: reset_interval_flush and in set_last_peering_reset

Reviewed-by: Sage Weil <sage@redhat.com>
Merge remote-tracking branches 'origin/wip-9480' and 'origin/wip-9875' into wip-sam-testing