/usr/bin/svnlastlog is in kdesdk-scripts 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 | #!/bin/sh
# This is a stripped down version of svnlastchange
svnlastchange -l "$@"
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