otrx: use %zd to fix printf format warnings

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45436 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/utils/otrx/src/otrx.c

@@ -175,7 +175,7 @@ static int otrx_check() {
 
 	buf = malloc(length);
 	if (!buf) {
-		fprintf(stderr, "Couldn't alloc %d B buffer\n", length);
+		fprintf(stderr, "Couldn't alloc %zd B buffer\n", length);
 		err =  -ENOMEM;
 		goto err_close;
 	}
@@ -183,7 +183,7 @@ static int otrx_check() {
 	fseek(trx, trx_offset, SEEK_SET);
 	bytes = fread(buf, 1, length, trx);
 	if (bytes != length) {
-		fprintf(stderr, "Couldn't read %d B of data from %s\n", length, trx_path);
+		fprintf(stderr, "Couldn't read %zd B of data from %s\n", length, trx_path);
 		err =  -ENOMEM;
 		goto err_free_buf;
 	}