Use DebugStruct to print PathBuildingHop

Author: jurvis

lightning/src/routing/router.rs

@@ -465,9 +465,15 @@ pub struct PathBuildingHop<'a> {
 
 impl<'a> core::fmt::Debug for PathBuildingHop<'a> {
 	fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
-        write!(f, "PathBuildingHop: node_id: {:?}, short_channel_id: {}, fee_msat: {}, path_penalty_msat: {}, path_htlc_minimum_msat: {}, cltv_expiry_delta: {}", self.node_id, self.candidate.short_channel_id(), self.fee_msat, self.path_penalty_msat, self.path_htlc_minimum_msat, self.candidate.cltv_expiry_delta())?;
-		Ok(())
-    }
+		f.debug_struct("PathBuildingHop")
+			.field("node_id", &self.node_id)
+			.field("short_channel_id", &self.candidate.short_channel_id())
+			.field("fee_msat", &self.fee_msat)
+			.field("path_penalty_msat", &self.path_penalty_msat)
+			.field("path_htlc_minimum_msat", &self.path_htlc_minimum_msat)
+			.field("cltv_expiry_delta", &self.candidate.cltv_expiry_delta())
+			.finish()
+	}
 }
 
 // Instantiated with a list of hops with correct data in them collected during path finding,