/etc/logcheck/ignore.d.workstation/xlockmore is in logcheck-database 1.3.14.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ xlock\[[0-9]+\]: Start: [._[:alnum:]-]+, [._[:alnum:]-]+, [._[:alnum:]-]*:[[:digit:]]+(\.[[:digit:]]+)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ xlock\[[0-9]+\]: Stop: [._[:alnum:]-]+, [._[:alnum:]-]+, [._[:alnum:]-]*:[[:digit:]]+(\.[[:digit:]]+)?, [[:digit:]]+m [[:digit:]]+s$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ xlock\[[0-9]+\]: xlock: expired\. closing down \(uid [[:digit:]]+\) on [._[:alnum:]-]*:[[:digit:]]+(\.[[:digit:]]+)?$
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