Fix typo.

Author: rouilj

doc/rest.txt

@@ -1273,7 +1273,7 @@ endpoints to new locations. Adding::
         return self.get_collection(classname, input)
 
 will move the response that normally happens at /rest/data/<class> to
-/rest/data/<class>.
+/rest/data2/<class>.
 
 
 Controlling Access to Backend Data