Index: usr.bin/brandelf/brandelf.c
===================================================================
--- usr.bin/brandelf/brandelf.c
+++ usr.bin/brandelf/brandelf.c
@@ -35,8 +35,10 @@
 #include <sys/types.h>
 #include <sys/elf_common.h>
 #include <sys/errno.h>
+
 #include <err.h>
 #include <fcntl.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -64,16 +66,21 @@
 {
 
 	const char *strtype = "FreeBSD";
-	int type = ELFOSABI_FREEBSD;
-	int retval = 0;
-	int ch, change = 0, force = 0, listed = 0;
+	int ch, retval, type;
+	bool change, force, listed;
+
+	type = ELFOSABI_FREEBSD;
+	retval = 0;
+	change = false;
+	force = false;
+	listed = false;
 
 	while ((ch = getopt(argc, argv, "f:lt:v")) != -1)
 		switch (ch) {
 		case 'f':
 			if (change)
 				errx(1, "f option incompatible with t option");
-			force = 1;
+			force = true;
 			type = atoi(optarg);
 			if (errno == ERANGE || type < 0 || type > 255) {
 				warnx("invalid argument to option f: %s",
@@ -83,7 +90,7 @@
 			break;
 		case 'l':
 			printelftypes();
-			listed = 1;
+			listed = true;
 			break;
 		case 'v':
 			/* does nothing */
@@ -91,7 +98,7 @@
 		case 't':
 			if (force)
 				errx(1, "t option incompatible with f option");
-			change = 1;
+			change = true;
 			strtype = optarg;
 			break;
 		default:
@@ -99,7 +106,7 @@
 	}
 	argc -= optind;
 	argv += optind;
-	if (!argc) {
+	if (argc == 0) {
 		if (listed)
 			exit(0);
 		else {
@@ -114,7 +121,7 @@
 		usage();
 	}
 
-	while (argc) {
+	while (argc != 0) {
 		int fd;
 		char buffer[EI_NIDENT];
 
@@ -176,9 +183,7 @@
 {
 	size_t elfwalk;
 
-	for (elfwalk = 0;
-	     elfwalk < sizeof(elftypes)/sizeof(elftypes[0]);
-	     elfwalk++)
+	for (elfwalk = 0; elfwalk < nitems(elftypes); elfwalk++)
 		if (etype == elftypes[elfwalk].value)
 			return elftypes[elfwalk].str;
 	return 0;
@@ -189,9 +194,7 @@
 {
 	size_t elfwalk;
 
-	for (elfwalk = 0;
-	     elfwalk < sizeof(elftypes)/sizeof(elftypes[0]);
-	     elfwalk++)
+	for (elfwalk = 0; elfwalk < nitems(elftypes); elfwalk++)
 		if (strcasecmp(elfstrtype, elftypes[elfwalk].str) == 0)
 			return elftypes[elfwalk].value;
 	return -1;
@@ -203,10 +206,8 @@
 	size_t elfwalk;
 
 	fprintf(stderr, "known ELF types are: ");
-	for (elfwalk = 0;
-	     elfwalk < sizeof(elftypes)/sizeof(elftypes[0]);
-	     elfwalk++)
-		fprintf(stderr, "%s(%u) ", elftypes[elfwalk].str, 
+	for (elfwalk = 0; elfwalk < nitems(elftypes); elfwalk++)
+		fprintf(stderr, "%s(%u) ", elftypes[elfwalk].str,
 			elftypes[elfwalk].value);
 	fprintf(stderr, "\n");
 }