A little wrapper around C4::Circulation::AnonymiseIssueHistory would be nice, which would allow choosing a number of days to go back and anonymize.
Created attachment 4613 [details] [review] Proposed patch
Simple wrapper script, no chances of regressions as it's totally isolated in cronjobs dir. Has full copyright header and documentation, as well as standard flags. Marking as Passed QA.
Pushed, please test
*** Bug 5636 has been marked as a duplicate of this bug. ***