unix2dos: Avoid implicit function decl

Author: alarixnia

converters/unix2dos/distinfo

@@ -4,3 +4,4 @@ BLAKE2s (unix2dos-1.3.tar.gz) = 779ec61e91a7b16da962a0ceaafe3d4f114d5e9dec361820
 SHA512 (unix2dos-1.3.tar.gz) = 4de17d5d99cb3972a354a629dafe52c3c353dec10e8d65e2fc1ce5cb45c67df69eec2bc692514119527c396bff3bd28ae34ef1b49f772cc9bd20ecaa27d3b071
 Size (unix2dos-1.3.tar.gz) = 2233 bytes
 SHA1 (patch-Makefile) = 5ad5a55bbde9d4ae957d2ad87622044f9ff85b58
+SHA1 (patch-unix2dos.c) = b6cd2e042db8b2a6d7bef42fdd7d45e92b40a565

converters/unix2dos/patches/patch-unix2dos.c

@@ -0,0 +1,12 @@
+$NetBSD$
+
+Add missing include for exit(3).
+
+--- unix2dos.c.orig	2001-05-22 23:58:39.000000000 +0000
++++ unix2dos.c
+@@ -1,4 +1,5 @@
+ #include <stdio.h>
++#include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
+ #include <sys/types.h>