Remove ricow@ from failure print out

tools/testing/dart/test_runner.dart

Index: tools/testing/dart/test_runner.dart
diff --git a/tools/testing/dart/test_runner.dart b/tools/testing/dart/test_runner.dart
index f8570c0200990185da7b3f31b382d74733f81544..2456957706f6302fe387222c85669878d41d3d75 100644
--- a/tools/testing/dart/test_runner.dart
+++ b/tools/testing/dart/test_runner.dart
@@ -2928,7 +2928,7 @@ class ProcessQueue {
         cancelDebugTimer();
         _debugTimer = new Timer(debugTimerDuration, () {
           print("The debug timer of test.dart expired. Please report this issue"
-              " to ricow/whesse and provide the following information:");
+              " to whesse@ and provide the following information:");
           print("");
           print("Graph is sealed: ${_graph.isSealed}");
           print("");