Fix double quote

Author: luan

app/controllers/base/base_controller.rb

@@ -114,11 +114,7 @@ def add_warning(warning)
       escaped_warning = CGI.escape(warning)
       existing_warning = @sinatra.headers['X-Cf-Warnings']
 
-      new_warning = if existing_warning.nil?
-                      escaped_warning
-                    else
-                      "#{existing_warning},#{escaped_warning}"
-                    end
+      new_warning = existing_warning.nil? ? escaped_warning : "#{existing_warning},#{escaped_warning}"
 
       set_header('X-Cf-Warnings', new_warning)
     end

spec/support/integration/setup.rb

@@ -1,4 +1,4 @@
-require "English"
+require 'English'
 
 module IntegrationSetup
   CC_START_TIMEOUT = 20