log: Include inttypes.h for PRI helpers

https://bugzilla.openvz.org/show_bug.cgi?id=2949Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

include/log.h

 #ifndef __CR_LOG_H__
 #define __CR_LOG_H__
 
+#include <inttypes.h>
+
 #include "criu-log.h"
 
 extern int log_init(const char *output);