/usr/bin/cvslastlog is in kdesdk-scripts 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | #!/bin/sh
# cvslastlog - prints log of last commit for a file
# Depends on the version of the local file, not the one on the server
# Requires cvsversion
# David Faure, faure@kde.org
cvs log -N -r`cvsversion "$1"` "$1"
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