I think that the additional processing of wtmp.1 must be left in to take account of log rotation (see #51796). I found that putting an additional '-f' parameter before '/var/log/wtmp.1' caused ac to process both files.
-- Sam Morris http://robots.org.uk/ PGP key id 1024D/5EA01078 3412 EA18 1277 354B 991B C869 B219 7FDB 5EA0 1078
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