Fix suppression

tools/valgrind/starpu.suppr

@@ -27,8 +27,10 @@
 }
 
 {
-   known race, but not problematic in practice, see comment in _starpu_tag_clear()
+   known race, but not problematic in practice, see comment in _starpu_tag_clear
    Helgrind:LockOrder
+   fun:pthread_spin_lock
+   fun:_starpu_spin_lock
    fun:_starpu_tag_free
    fun:_starpu_htbl_clear_tags
    ...