Fix wrong variable on tests.

Author: smartinez87

test/background_exception_notification_test.rb

@@ -44,7 +44,7 @@ class BackgroundExceptionNotificationTest < ActiveSupport::TestCase
     rescue => e
       @ignored_exception = e
       unless ExceptionNotifier.default_ignore_exceptions.include?(@ignored_exception.class)
-        @ignored_mail = ExceptionNotifier::Notifier.background_exception_notification(@exception)
+        @ignored_mail = ExceptionNotifier::Notifier.background_exception_notification(@ignored_exception)
       end
     end
 

test/dummy/test/functional/posts_controller_test.rb

@@ -49,7 +49,7 @@ class PostsControllerTest < ActionController::TestCase
     rescue => e
       @ignored_exception = e
       unless ExceptionNotifier.default_ignore_exceptions.include?(@ignored_exception.class)
-        @ignored_mail = ExceptionNotifier::Notifier.exception_notification(request.env, @exception)
+        @ignored_mail = ExceptionNotifier::Notifier.exception_notification(request.env, @ignored_exception)
       end
     end