fix(wiki): avoid double migration of service wiki pages (#5883)

bin/migrateWikiPages.php

@@ -46,7 +46,7 @@ foreach ($pages as $page) {
         $newName = 'Host : ' . $matches[1];
     } elseif (preg_match('/Host-Template\:(.+)/', $page, $matches)) {
         $newName = 'Host-Template : ' . $matches[1];
-    } elseif (preg_match('/Service\:(.+)/', $page, $matches)){
+    } elseif (preg_match('/Service\:(.+)/', $page, $matches) && !preg_match('/Service\:\s+\/\s+/', $page)) {
         $name = explode(' ', $matches[1]);
         if (count($name) > 1) {
             $hostName = array_shift($name);