message: Fix a typo in main.py
  This patch fixes a typo "false" in main.py. The right token should
  be "False".
diff: @@ -131,7 +131,7 @@ def link_object(obj, types):
  arg.length = "constant"
  arg.constant_length = 1
  else:
  - assert(false)
  + assert(False)
  elif a['length'] == 'strlen':
  arg.length = 'strlen'
  else:
  