valgrind: valgrind itself has memory leaks ...

tools/valgrind/valgrind.suppr

@@ -0,0 +1,9 @@
+{
+   valgrind_suppr1
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:malloc
+   fun:ensure_sReq_space
+   fun:add_shadow_Request
+   fun:PMPI_Irecv
+}