update another test

Author: hauntsaninja

test-data/unit/fine-grained.test

@@ -2954,7 +2954,8 @@ class B(metaclass=c.M): pass
 class M(type): pass
 [out]
 ==
-a.py:3: error: Metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases - a.M2 (meta of a.D) conflicting with c.M (metaclass of b.B)
+a.py:3: error: Metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
+a.py:3: note: a.M2 (meta of a.D) conflicts with c.M (metaclass of b.B)
 
 [case testFineMetaclassDeclaredUpdate]
 import a
@@ -2973,7 +2974,8 @@ class M(type): pass
 class M2(type): pass
 [out]
 ==
-a.py:3: error: Metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases - b.M2 (meta of a.D) conflicting with b.M (metaclass of a.B)
+a.py:3: error: Metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
+a.py:3: note: b.M2 (meta of a.D) conflicts with b.M (metaclass of a.B)
 
 [case testFineMetaclassRemoveFromClass]
 import a