Gemfile in airborne-0.0.21 vs Gemfile in airborne-0.0.22

@@ -5,8 +5,8 @@
 gem 'rack-test'
 gem 'activesupport'
 gem 'coveralls', require: false
 
 group :test do
-	gem 'webmock'
-	gem 'sinatra'
+  gem 'webmock'
+  gem 'sinatra'
 end