Apply suggestion following review

Pierre-Sassoulas · Pierre-Sassoulas · commit adae306d01bf · 2021-04-20T09:37:47.000+02:00
diff --git a/astroid/nodes.py b/astroid/nodes.py
@@ -20,7 +20,7 @@
 """
 # pylint: disable=unused-import,redefined-builtin
 
-# Node not present in the builtin ast module:  DictUnpack, Unknown, and EvaluatedObject.
+# Nodes not present in the builtin ast module:  DictUnpack, Unknown, and EvaluatedObject.
 from astroid.node_classes import (
     AnnAssign,
     Arguments,
