test: use `sendall` in wallet_taproot.py tests #25159

 445 | +        txid = self.rpc_online.sendall(recipients=[self.boring.getnewaddress()])["txid"]
 446 |          self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
 447 |          assert(self.rpc_online.gettransaction(txid)["confirmations"] > 0)
 448 |  
 449 | -        psbt = self.psbt_online.walletcreatefundedpsbt([], [{self.boring.getnewaddress(): self.psbt_online.getbalance()}], None, {"subtractFeeFromOutputs": [0]})['psbt']
 450 | +        psbt = self.psbt_online.sendall(recipients=[self.boring.getnewaddress()], options={"psbt": True})["psbt"]

murchandamus commented at 7:06 PM on May 17, 2022:

No change needed: I was today years old, when I learned that

        psbt = self.psbt_online.sendall(recipients=[self.boring.getnewaddress()])["psbt"]

would also work, because the wallet automatically returns a PSBT when it cannot sign for a transaction. I do prefer it explicitly stated as proposed by @ishaanam, though.