bug: output from verify-contextual-logging.sh is logically reversed

[MikeSpreitzer]

Describe the bug

When verify-contextual-logging.sh reports a change in the contextual logging output, it uses diff output but in the reverse of the order that is most intuitive. One would expect, as for example git diff does, to see a diff from the old to the new. But instead verify-contextual-logging.sh outputs a diff from the new to the old.

Steps To Reproduce

Look at any report, or the script itself.

Expected Behaviour

I expected a reported diff to be from the old to the new.

Additional Context

No response