Use a double dash separator for the m in the channel name of metapuzzles

The double dash is what will make the meta puzzles sort before all
non-metapuzzled.

diff --git a/turbot/puzzle.py b/turbot/puzzle.py
index 1d1fda85bff975dea6adea33942a5eeaaece7914..abfe60b505308874109938f48f234cc2791c19a0 100644 (file)
--- a/turbot/puzzle.py
+++ b/turbot/puzzle.py
@@ -283,7 +283,7 @@ def puzzle_channel_name(puzzle):
 
     meta = ''
     if puzzle.get('type', 'plain') == 'meta':
-        meta = '-m'
+        meta = '--m'
 
     # Note: We don't use puzzle['puzzle_id'] here because we're keeping
     # that as a persistent identifier in the database. Instead we