Change the format of a Subversion working copy
When you copy a subversion working copy from someone else and perform a `svn up` command, you may meet error like this:
svn: This client is too old to work with working copy ‘./’; please get a newer Subversion client.
You can choose to update your svnclient version, or simply use this python script to change format of this subversion working copy:
./change-svn-wc-format.py . 1.4
