Fixed SDK constraint [TBR].

pq · pq · commit 116fc1f11ded · 2015-06-02T15:03:40.000-07:00
(Required in order to use ^ syntax.)
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -3,6 +3,8 @@ version: 0.1.0
 author: Dart Team <misc@dartlang.org>
 description: Style linter for Dart.
 homepage: https://github.com/dart-lang/linter
+environment:
+  sdk: '>=1.8.0 <2.0.0'
 dependencies:
   analyzer: ^0.25.0-dev.1
   args: '>=0.12.1 <0.14.0'
