Use dartfmt on Observatory code

runtime/observatory/lib/src/repositories/flag.dart

Index: runtime/observatory/lib/src/repositories/flag.dart
diff --git a/runtime/observatory/lib/src/repositories/flag.dart b/runtime/observatory/lib/src/repositories/flag.dart
index 0072c0e91f74ae8ce18a24e7f1f7ebbef7f553d6..b1b534993babcbf4573721e3a108b73e8869aa67 100644
--- a/runtime/observatory/lib/src/repositories/flag.dart
+++ b/runtime/observatory/lib/src/repositories/flag.dart
@@ -21,15 +21,13 @@ class FlagsRepository implements M.FlagsRepository {
 
   FlagsRepository(this.vm);
 
-  Future<Iterable<Flag>> list() async{
+  Future<Iterable<Flag>> list() async {
     List<Map> flags = ((await vm.getFlagList()) as S.ServiceMap)['flags'];
     return flags.map(_toFlag);
   }
 
-  static _toFlag(Map map){
-    return new Flag(map['name'],
-                    map['comment'],
-                    map['modified'],
-                    map['valueAsString']);
+  static _toFlag(Map map) {
+    return new Flag(
+        map['name'], map['comment'], map['modified'], map['valueAsString']);
   }
 }