f use more concise variable name

Author: TheBlueMatt

lightning/src/ln/outbound_payment.rs

@@ -1014,12 +1014,12 @@ impl OutboundPayments {
 					final_value_msat: path_last_hop.fee_msat,
 					final_cltv_expiry_delta: params.final_cltv_expiry_delta.unwrap(),
 				});
-			} else if let Some(payment_params_data) = payment_params {
+			} else if let Some(params) = payment_params {
 				retry = Some(RouteParameters {
-					payment_params: payment_params_data.clone(),
+					payment_params: params.clone(),
 					final_value_msat: path_last_hop.fee_msat,
 					final_cltv_expiry_delta:
-						if let Some(delta) = payment_params_data.final_cltv_expiry_delta { delta }
+						if let Some(delta) = params.final_cltv_expiry_delta { delta }
 						else { path_last_hop.cltv_expiry_delta },
 				});
 			}