Fixed two warnings (especially the one that get repeted a large number of times in 64bit builds)

This commit was SVN r17197.

ompi/mca/pml/v/vprotocol/pessimist/vprotocol_pessimist_event.h

@@ -14,11 +14,13 @@
 #include "ompi_config.h"
 #include "opal/mca/base/mca_base_param.h"
 #include "ompi/mca/pml/base/pml_base_request.h"
+#include <inttypes.h>
 
 BEGIN_C_DECLS
 
+/* Make sure -Wformat is happy... */ 
 typedef uint64_t vprotocol_pessimist_clock_t;
-#define PRIpclock "llx"
+#define PRIpclock PRIx64
 
 typedef enum {
   VPROTOCOL_PESSIMIST_EVENT_TYPE_MATCHING,