More ruf fixes

Author: cwoffenden

test/test_interactive.py

@@ -348,6 +348,7 @@ def setUp(self):
     self.set_setting('MEMORY64')
     self.require_wasm64()
 
+
 class interactive64_4gb(interactive):
   def setUp(self):
     super().setUp()
@@ -356,6 +357,7 @@ def setUp(self):
     self.set_setting('GLOBAL_BASE', '4gb')
     self.require_wasm64()
 
+
 class interactive_2gb(interactive):
   def setUp(self):
     super().setUp()