Consistent Casing

lang/English/modules/user_admin.php

@@ -109,5 +109,5 @@ define('OGP_LANG_enter_valid_username', "Please enter a valid username.");
 define('OGP_LANG_unexpected_role', "Unexpected user role received.");
 define('OGP_LANG_search', "Search");
 define('OGP_LANG_api_token', "API token");
-define('OGP_LANG_user_receives_emails', "Receive Emails");
+define('OGP_LANG_user_receives_emails', "Receive emails");
 ?>