relnote: Avoid redundant recvmmsg when the previous recvmmsg returned

net/tools/quic/quic_server.cc

Index: net/tools/quic/quic_server.cc
diff --git a/net/tools/quic/quic_server.cc b/net/tools/quic/quic_server.cc
index 966c2cc24b1de09fa776bf69ef9d78aeafd08fdb..b68b7bea3ee4be2f6fa9abed60d75064972f962a 100644
--- a/net/tools/quic/quic_server.cc
+++ b/net/tools/quic/quic_server.cc
@@ -209,14 +209,14 @@ void QuicServer::OnEvent(int fd, EpollEvent* event) {
 
   if (event->in_events & EPOLLIN) {
     DVLOG(1) << "EPOLLIN";
-    bool read = true;
-    while (read) {
+    bool more_to_read = true;
+    while (more_to_read) {
       if (use_recvmmsg_) {
-        read = packet_reader_->ReadAndDispatchPackets(
+        more_to_read = packet_reader_->ReadAndDispatchPackets(
             fd_, port_, dispatcher_.get(),
             overflow_supported_ ? &packets_dropped_ : nullptr);
       } else {
-        read = QuicPacketReader::ReadAndDispatchSinglePacket(
+        more_to_read = QuicPacketReader::ReadAndDispatchSinglePacket(
             fd_, port_, dispatcher_.get(),
             overflow_supported_ ? &packets_dropped_ : nullptr);
       }