Import patch iproute2-hz

(Logical change 1.159)
diff --git a/tc/tc_util.c b/tc/tc_util.c
index 889d16c..9cde144 100644
--- a/tc/tc_util.c
+++ b/tc/tc_util.c
@@ -421,7 +421,7 @@
 
 void print_tm(FILE * f, const struct tcf_t *tm)
 {
-	int hz = get_hz();
+	int hz = get_user_hz();
 	if (tm->install != 0)
 		fprintf(f, " installed %u sec", (unsigned)(tm->install/hz));
 	if (tm->lastuse != 0)