Change ofchannel debug log to txt so dumped last on failure.
Change ofchannel debug log to txt so dumped last on failure.

byllyfish/faucet,trentindav/faucet,gizmoguy/faucet,trentindav/faucet,faucetsdn/faucet,byllyfish/faucet,REANNZ/faucet,REANNZ/faucet,anarkiwi/faucet,gizmoguy/faucet,trungdtbk/faucet,trungdtbk/faucet,wackerly/faucet,wackerly/faucet,shivarammysore/faucet,mwutzke/faucet,shivarammysore/faucet,anarkiwi/faucet,mwutzke/faucet,faucetsdn/faucet