fixing bug 18336, skipWhile comment was wrong

src/site/docs/tutorials/streams/index.markdown

Index: src/site/docs/tutorials/streams/index.markdown
diff --git a/src/site/docs/tutorials/streams/index.markdown b/src/site/docs/tutorials/streams/index.markdown
index c1980b7a37e983ae0599d62b1416ee8b1a212fce..21f9c63e90658d6cd96e3b1fbae1159f29d87a09 100644
--- a/src/site/docs/tutorials/streams/index.markdown
+++ b/src/site/docs/tutorials/streams/index.markdown
@@ -225,7 +225,8 @@ broadcastStream
 
 broadcastStream
     .skipWhile((value) => value < 3) // skip while true
-    .listen((value) => print("skipWhile: $value")); // skipWhile: 4
+    .listen((value) => print("skipWhile: $value")); // skipWhile: 3
+                                                    // skipWhile: 4
                                                     // skipWhile: 5
 {% endprettify %}<!--- END(stream_subsets) -->