AUP3: Reworked CopyTo() yet again

This time it has the potential to produce much smaller
output files since it ONLY copies the active blocks and
not all of the blocks related to undo history.

src/import/ImportAUP.cpp

@@ -705,7 +705,7 @@ bool AUPImportFileHandle::HandleProject(XMLTagHandler *&handler)
          if (projName.empty())
          {
             AudacityMessageBox(
-               XO("Couldn't find the project data folder: \"%s\"").Format(*value),
+               XO("Couldn't find the project data folder: \"%s\"").Format(value),
                XO("Error Opening Project"),
                wxOK | wxCENTRE,
                &window);