MDL-18223 fixed admin string sorting

lang/en_utf8/admin.php

@@ -763,13 +763,13 @@
 $string['uploadusersresult'] = 'Upload users results';
 $string['upwards'] = 'upwards';
 $string['usehtmleditor'] = 'Use HTML editor';
+$string['user'] = 'User';
 $string['useraccountupdated'] = 'User updated';
 $string['userbulk'] = 'Bulk user actions';
 $string['userdeleted'] = 'User deleted';
 $string['userlist'] = 'Browse list of users';
 $string['userpolicies'] = 'User policies';
 $string['userrenamed'] = 'User renamed';
-$string['user'] = 'User';
 $string['users'] = 'Users';
 $string['userscreated'] = 'Users created';
 $string['usersdeleted'] = 'Users deleted';