(util.inc) fix grep: writing output: Broken pipe when running get_interface_list

src/etc/inc/util.inc

@@ -965,7 +965,7 @@ function get_interface_list($only_active = false)
         }
 
         $dmesg_arr = array();
-        exec("/sbin/dmesg |grep $ifname | head -n1", $dmesg_arr);
+        exec("/sbin/dmesg |grep $ifname", $dmesg_arr);
         preg_match_all("/<(.*?)>/i", $dmesg_arr[0], $dmesg);
         if (isset($dmesg[1][0])) {
             $toput['dmesg'] = $dmesg[1][0];