code cleanup: minor improvements to scripts.

- make wm-property operators use INTERNAL option.
- make console use str.expandtabs() rather then replacing tab->spaces.

release/scripts/startup/bl_ui/space_sequencer.py

@@ -555,7 +555,7 @@ class SEQUENCER_PT_effect(SequencerButtonsPanel, Panel):
 
             row.label("Cut To")
             for i in range(1, strip.channel):
-                row.operator("sequencer.cut_multicam", text=str(i)).camera = i
+                row.operator("sequencer.cut_multicam", text="%d" % i).camera = i
 
         col = layout.column(align=True)
         if strip.type == 'SPEED':