Add some comments

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>

server/client.go

@@ -2178,7 +2178,7 @@ func (c *client) checkForImportServices(acc *Account, msg []byte) {
 			nrr = c.newServiceReply()
 			rm.acc.addImplicitServiceImport(acc, string(nrr), string(c.pa.reply), true, nil)
 			// If this is a client connection and we are in
-			// gateway mode, we need to send RS+ to cluster
+			// gateway mode, we need to send RS+ to local cluster
 			// and possibly to inbound GW connections for
 			// which we are in interest-only mode.
 			if c.kind == CLIENT && c.srv.gateway.enabled {

server/gateway.go

@@ -2108,6 +2108,9 @@ func (c *client) processInboundGatewayMsg(msg []byte) {
 
 	// Check to see if we need to map/route to another account.
 	if acc.imports.services != nil && isServiceReply(c.pa.subject) {
+		// We are handling an response to a request that we mapped
+		// via service imports, so if we are here we are the
+		// origin server
 		c.checkForImportServices(acc, msg)
 	}