Update .gitignore to new dart_tool pub cache (#81)

bcko · natebosch · commit 81fe3b9fe935 · 2018-05-28T13:38:11.000-07:00
dart-lang/sdk#32030
diff --git a/.gitignore b/.gitignore
@@ -1,5 +1,6 @@
 # Don’t commit the following directories created by pub.
 .buildlog
+.dart_tool/
 .pub/
 build/
 packages
@@ -12,4 +13,4 @@ packages
 *.js.map
 
 # Include when developing application packages.
-pubspec.lock
+pubspec.lock
