Fix lint errors

packages/flutter_tools/lib/src/commands/create.dart

diff --git a/packages/flutter_tools/lib/src/commands/create.dart b/packages/flutter_tools/lib/src/commands/create.dart
index 7abf6b4..cb4662c 100644
--- a/packages/flutter_tools/lib/src/commands/create.dart
+++ b/packages/flutter_tools/lib/src/commands/create.dart
@@ -157,7 +157,7 @@
   RegExp disallowed = new RegExp(r"[^a-zA-Z0-9\-.\u0080-\uffff]+");
   name = name.replaceAll(disallowed, '');
   name = name.length == 0 ? 'untitled' : name;
-  return 'com.yourcompany.${name}';
+  return 'com.yourcompany.$name';
 }
 
 const String _analysis_options = r'''