Merge pull request #2699 from rswindell/include_inttypes

Fix build error: expected ‘)’ before ‘PRIu64’

src/logging.c

@@ -20,6 +20,7 @@ Contributors:
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
+#include <inttypes.h>
 #ifndef WIN32
 #include <syslog.h>
 #endif

src/sys_tree.c

@@ -23,6 +23,7 @@ Contributors:
 #include <math.h>
 #include <stdio.h>
 #include <limits.h>
+#include <inttypes.h>
 
 #include "mosquitto_broker_internal.h"
 #include "memory_mosq.h"