Corrected an error

git-svn-id: https://plugins.svn.wordpress.org/my-newsletter/trunk@997355 b8457f37-d9ea-0310-8a92-e5e31aec5664
Again.

git-svn-id: https://plugins.svn.wordpress.org/my-newsletter/trunk@997356 b8457f37-d9ea-0310-8a92-e5e31aec5664