Add an extra newline after "Response:" in quic_client's output.

net/tools/quic/quic_client_bin.cc

Index: net/tools/quic/quic_client_bin.cc
diff --git a/net/tools/quic/quic_client_bin.cc b/net/tools/quic/quic_client_bin.cc
index 234f5268b1ae0448a46840595d160768dd9120e8..8154fc8da9800c3c3b3ef2cf8769e1531976be99 100644
--- a/net/tools/quic/quic_client_bin.cc
+++ b/net/tools/quic/quic_client_bin.cc
@@ -269,7 +269,8 @@ int main(int argc, char *argv[]) {
       cout << " " << kv.first << ": " << kv.second << endl;
     }
     cout << "body: " << FLAGS_body << endl;
-    cout << endl << "Response:";
+    cout << endl;
+    cout << "Response:" << endl;
     cout << "headers: " << client.latest_response_headers() << endl;
     cout << "body: " << client.latest_response_body() << endl;
   }