minor text change

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@831219 b8457f37-d9ea-0310-8a92-e5e31aec5664
minor text change

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@831220 b8457f37-d9ea-0310-8a92-e5e31aec5664