--- progs/dump_entry.c.orig	2017-06-22 23:06:28.000000000 +0300
+++ progs/dump_entry.c	2017-06-22 23:46:42.000000000 +0300
@@ -807,8 +807,10 @@ number_format(int value)
     if ((outform != F_TERMCAP) && (value > 255)) {
 	unsigned long lv = (unsigned long) value;
 	unsigned long mm;
+	int bits = sizeof(unsigned long) * 8;
 	int nn;
-	for (nn = 8; (mm = (1UL << nn)) != 0; ++nn) {
+	for (nn = 8; nn < bits; ++nn) {
+	    mm = 1UL << nn;
 	    if ((mm - 16) <= lv && (mm + 16) > lv) {
 		result = "%#x";
 		break;