rpc: rename variable to clarify its purpose

rpcserver.go

@@ -2261,9 +2261,10 @@ func (s *rpcServer) prepareLeasesResponse(ctx context.Context,
 		totalAmtPaid   btcutil.Amount
 	)
 	for _, batch := range batches {
-		// Keep a tally of how many channels were created within each
-		// batch in order to estimate the chain fees paid.
-		numChans := 0
+		// Keep a tally of the total number of channels which were
+		// created within each batch in order to estimate the chain fees
+		// paid.
+		totalNumChannels := 0
 
 		// Keep track of the index for the first lease found for this
 		// batch. We'll use this to know where to start from when
@@ -2415,7 +2416,8 @@ func (s *rpcServer) prepareLeasesResponse(ctx context.Context,
 					SidecarChannel:       isSidecarChannel,
 				})
 
-				numChans++
+				// Count the total number of channels.
+				totalNumChannels++
 			}
 
 			// Estimate the chain fees paid for the number of
@@ -2427,16 +2429,18 @@ func (s *rpcServer) prepareLeasesResponse(ctx context.Context,
 			// also take a look at the actual account version at the
 			// time of the batch.
 			chainFee := order.EstimateTraderFee(
-				uint32(numChans), batch.BatchTxFeeRate,
+				uint32(totalNumChannels), batch.BatchTxFeeRate,
 				account.VersionInitialNoVersion,
 			)
 
 			// We'll need to compute the chain fee paid for each
 			// lease. Since multiple leases can be created within a
 			// batch, we'll need to evenly distribute. We'll always
 			// apply the remainder to the first lease in the batch.
-			chainFeePerChan := chainFee / btcutil.Amount(numChans)
-			chainFeePerChanRem := chainFee % btcutil.Amount(numChans)
+			chainFeePerChan :=
+				chainFee / btcutil.Amount(totalNumChannels)
+			chainFeePerChanRem :=
+				chainFee % btcutil.Amount(totalNumChannels)
 			for i := firstIdxForBatch; i < len(rpcLeases); i++ {
 				chainFee := chainFeePerChan
 				if i == firstIdxForBatch {