...acr_deleted_reg key doesn't exist.
...site_stats is populated...done.
Purging caches...done.
...rev_len column of revision table already populated.
...Update 'populate rev_sha1' already logged as completed.
...img_sha1 column of image table already populated.
...protocol-relative URLs in externallinks table already fixed.
...fa_sha1 column of filearchive table already populated.
Purging caches...done.

Done.
reedy@ubuntu64-web-esxi:/var/www/wiki/mediawiki/core$

Whhhy?

Version: 1.21.x
Severity: trivial