ERP5VCS: Fix wrong module path.

product/ERP5VCS/WorkingCopy.py

@@ -118,7 +118,7 @@ class WorkingCopy(Implicit):
     parts = path.split(os.sep)
     try:
       i = len(parts) - parts[::-1].index(os.pardir)
-      parts[:i] = os.realpath(parts[:i].join(os.sep)),
+      parts[:i] = os.path.realpath(parts[:i].join(os.sep)),
       path = parts.join(os.sep)
     except ValueError:
       pass