message: example_test.py: fixup coinbase height argument, derive number clearly
diff: @@ -164,13 +164,13 @@ class ExampleTest(BitcoinTestFramework):
  self.tip = int(self.nodes[0].getbestblockhash(), 16)
  self.block_time = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['time'] + 1
  - height = 1
  + height = self.nodes[0].getblockcount()
  for i in range(10):
  # Use the mininode and blocktools functionality to manually build a block
  # Calling the generate() rpc is easier, but this allows us to exactly
  # control the blocks and transactions.
  - block = create_block(self.tip, create_coinbase(height), self.block_time)
  + block = create_block(self.tip, create_coinbase(height+1), self.block_time)
  block.solve()
  block_message = msg_block(block)
  # Send message is used to send a P2P message to the node over our P2PInterface
  