Fix new unused variable warning in `test_utils.rs`

diff --git a/lightning/src/util/test_utils.rs b/lightning/src/util/test_utils.rs
index ae942a058bb899c64d3078c24cdd29e5f4c30f13..bd66e4cae3e56fa70195a4627bf38451bac37d9c 100644 (file)
--- a/lightning/src/util/test_utils.rs
+++ b/lightning/src/util/test_utils.rs
@@ -423,7 +423,7 @@ impl<Signer: sign::WriteableEcdsaChannelSigner> chainmonitor::Persist<Signer> fo
                chain::ChannelMonitorUpdateStatus::Completed
        }
 
-       fn update_persisted_channel(&self, funding_txo: OutPoint, update: Option<&channelmonitor::ChannelMonitorUpdate>, _data: &channelmonitor::ChannelMonitor<Signer>, update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
+       fn update_persisted_channel(&self, funding_txo: OutPoint, _update: Option<&channelmonitor::ChannelMonitorUpdate>, _data: &channelmonitor::ChannelMonitor<Signer>, update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
                let mut ret = chain::ChannelMonitorUpdateStatus::Completed;
                if let Some(update_ret) = self.update_rets.lock().unwrap().pop_front() {
                        ret = update_ret;