svn cleanup — Recursively clean up the working copy
Recursively clean up the working copy, removing
            working copy locks and resuming unfinished operations.  If
            you ever get a working copy locked
            error, run this command to remove stale locks and get your
            working copy into a usable state again.
If, for some reason, an svn update
            fails due to a problem running an external diff program
            (e.g., user input or network failure), pass the
            --diff3-cmd to allow the cleanup process
            to complete any required merging using your external diff
            program.  You can also specify any configuration directory
            with the --config-dir option, but you
            should need these options extremely infrequently.