[polymer] switch comment style

pkg/polymer/lib/src/job.dart

Index: pkg/polymer/lib/src/job.dart
diff --git a/pkg/polymer/lib/src/job.dart b/pkg/polymer/lib/src/job.dart
index 5ba818fd3231f1e04686810919fb01e550325a79..e92d0c85e4ec8796d489302fa1303749e6d88ae1 100644
--- a/pkg/polymer/lib/src/job.dart
+++ b/pkg/polymer/lib/src/job.dart
@@ -4,14 +4,12 @@
 
 part of polymer;
 
-/**
- * Invoke [callback] in [wait], unless the job is re-registered,
- * which resets the timer. For example:
- *
- *     _myJob = runJob(_myJob, callback, const Duration(milliseconds: 100));
- *
- * Returns a job handle which can be used to re-register a job.
- */
+/// Invoke [callback] in [wait], unless the job is re-registered,
+/// which resets the timer. For example:
+///
+///     _myJob = runJob(_myJob, callback, const Duration(milliseconds: 100));
+///
+/// Returns a job handle which can be used to re-register a job.
 // Dart note: renamed to runJob to avoid conflict with instance member "job".
 _Job _runJob(_Job job, void callback(), Duration wait) {
   if (job != null) {