$NetBSD: patch-findcrcs.cc,v 1.2 2021/02/04 08:42:11 wiz Exp $

Add missing include for errno.
https://github.com/claunia/findcrcs/pull/2

--- findcrcs.cc.orig	2015-05-24 22:26:34.000000000 +0000
+++ findcrcs.cc
@@ -33,6 +33,7 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdlib.h>