Run(cmd);
Run(cmd, fn.GetPath(wxPATH_GET_VOLUME));
    void CVSRunner::Update(const wxString& target, const wxString& revision, const wxString& date)    {        SetTarget(target);        wxFileName fn(target);        wxFileName::SetCwd(fn.GetPath(wxPATH_GET_VOLUME));        wxString file = wxDirExists(target) ? "" : Q(fn.GetFullName());        wxString cmd(" update " + file + (revision.IsEmpty() ? "" : " -r" + Q(revision)) + (revision.IsEmpty() ? "" : " -D" + Q(date)));        Run(cmd);    };