File collectd-fix_attr_unused.patch of Package collectd

--- a/src/virt.c	2025-10-16 14:19:22.100971296 +0200
+++ b/src/virt.c	2025-10-16 14:20:20.193829575 +0200
@@ -2206,7 +2206,7 @@
   return 0;
 }
 
-static void virt_eventloop_timeout_cb(int timer ATTRIBUTE_UNUSED,
+static void virt_eventloop_timeout_cb(__attribute__((unused)) int timer,
                                       void *timer_info) {}
 
 static int register_event_impl(void) {