remove a couple of style errors to get tests passing again

Author: jakebeal

test/test_participation.py

@@ -17,7 +17,6 @@ def test_add_remove_role(self):
         self.assertEqual([sbol2.SO_PROMOTER, sbol2.SO_CDS], p.roles)
 
     def test_init_with_participant(self):
-
         p = sbol2.Participation('p', participant='p1')
         self.assertEqual('p1', p.participant)
 

test/test_style.py

@@ -49,7 +49,7 @@ def test_wildcard_imports(self):
                     if 'import' in line:
                         if '*' in line and 'constants' not in line:
                             msg = 'Wildcard import in {}: {}'
-                            msg = msg.format(f, line)
+                            _ = msg.format(f, line)
                             # self.fail(msg)
                             # print(msg)
                             wildcard_count += 1