Update vendor libarchive dist to new "release" branch (post 3.0.3)

Git branch:	release
Git commit:	9af87742342aa4f37a22ec12c4cc1c82e00ffa2f

Obtained from:	https://github.com/libarchive/libarchive.git

1 files changed, 5 insertions, 1 deletions

diff --git a/examples/untar.c b/examples/untar.c
index e77adf7..c027f77 100644
--- a/examples/untar.c
+++ b/examples/untar.c
@@ -190,7 +190,7 @@ extract(const char *filename, int do_extract, int flags)
 			msg("\n");
 	}
 	archive_read_close(a);
-	archive_read_finish(a);
+	archive_read_free(a);
 	exit(0);
 }
 
@@ -200,7 +200,11 @@ copy_data(struct archive *ar, struct archive *aw)
 	int r;
 	const void *buff;
 	size_t size;
+#if ARCHIVE_VERSION >= 3000000
+	int64_t offset;
+#else
 	off_t offset;
+#endif
 
 	for (;;) {
 		r = archive_read_data_block(ar, &buff, &size, &offset);