fix supports_rename in WrapReadOnly

Author: tfeldmann

fs/wrap.py

@@ -326,5 +326,5 @@ def getmeta(self, namespace="standard"):
         # type: (Text) -> Mapping[Text, object]
         self.check()
         meta = dict(self.delegate_fs().getmeta(namespace=namespace))
-        meta.update(read_only=True, supports_rename=True)
+        meta.update(read_only=True, supports_rename=False)
         return meta