Add Dart SDK > 2.3.0 constraint to license script (flutter/engine#9385)

The license script uses Set literals among other Dart 2.3.0 features.
2019-06-19 15:52:30 -07:00
parent 9788d1289a
commit 415af58f49
1 changed files with 2 additions and 0 deletions
--- a/engine/src/flutter/tools/licenses/pubspec.yaml
+++ b/engine/src/flutter/tools/licenses/pubspec.yaml
@@ -5,3 +5,5 @@ dependencies:
  crypto: ^2.0.2+1
  meta: ^1.1.6
  path: ^1.3.0
+environment:
+  sdk: '>=2.3.0 <3.0.0'