- show "merge by name" only to owner

svn path=/trunk/boinc/; revision=13976

html/user/hosts_user.php

@@ -85,6 +85,7 @@ if ($userid) {
         error_page("No such user");
     }
     $caching = true;
+
     // At this point, we know that $userid, $show_all and $sort all have
     // valid values.
     //
@@ -133,9 +134,11 @@ if ($old_hosts>0) {
     more_or_less($show_all);
 }
 
+if (!$userid) {
     echo "
         <a href=merge_by_name.php>Merge computers by name</a>
     ";
+}
 
 if ($caching) {
     page_tail(true);