Fix comma placement in [25179].

props gradyetc.
see #15004, fixes #25298.


git-svn-id: https://develop.svn.wordpress.org/trunk@25413 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/schema.php

@@ -285,9 +285,9 @@ CREATE TABLE $wpdb->signups (
   meta longtext,
   PRIMARY KEY  (signup_id),
   KEY activation_key (activation_key),
-  KEY user_email (user_email)
+  KEY user_email (user_email),
   KEY user_login_email (user_login,user_email),
-  KEY domain_path (domain,path),
+  KEY domain_path (domain,path)
 ) $charset_collate;";
 
 	switch ( $scope ) {