Fix minor docs errors

docs/changing_default_behavior.rst

@@ -37,7 +37,7 @@ and what the return values of your callback functions need to be.
       - Function to call to load a user object when token accesses a protected endpoint
     * - :meth:`~flask_jwt_extended.JWTManager.user_loader_error_loader`
       - Function that is called when the user_loader callback function returns `None`
-    * - :meth:`~flask_jwt_extended.JWTManager.user_loader_error_loader`
+    * - :meth:`~flask_jwt_extended.JWTManager.token_in_blacklist_loader`
       - Function that is called to check if a token has been revoked
     * - :meth:`~flask_jwt_extended.JWTManager.claims_verification_loader`
       - Function that is called to verify the user_claims data. Must return True or False

flask_jwt_extended/jwt_manager.py

@@ -313,7 +313,7 @@ def user_loader_error_loader(self, callback):
         is returned from the
         :meth:`~flask_jwt_extended.JWTManager.user_loader_callback_loader`
         callback function. The default implementation will return
-        a 400 status code with the JSON:
+        a 401 status code with the JSON:
 
         {"msg": "Error loading the user <identity>"}