data_meta: linter fixes

lib/galaxy/model/__init__.py

@@ -4344,6 +4344,7 @@ class HistoryDatasetCollectionAssociation(DatasetCollectionInstance,
         self.copied_from_history_dataset_collection_association = copied_from_history_dataset_collection_association
         self.implicit_output_name = implicit_output_name
         self.implicit_input_collections = implicit_input_collections
+
     @property
     def history_content_type(self):
         return "dataset_collection"

lib/galaxy/tools/parameters/dynamic_options.py

@@ -2,8 +2,8 @@
 Support for generating the options for a SelectToolParameter dynamically (based
 on the values of other parameters or other aspects of the current state)
 """
-from collections import OrderedDict
 import copy
+from collections import OrderedDict
 import logging
 import os
 import re