[master] 2df4639f6 Polish previous commit

[Nils Goroll]

commit 2df4639f62236c98cf8a83b29183b3b2d0426ce2
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Mon Oct 2 14:25:43 2023 +0200

    Polish previous commit
    
    Feedback from Dridi and a Flexelint warning.
    
    Ref 91a858401e713baf33b3364bd2b9a81f914b14d3

diff --git a/lib/libvarnish/vsb.c b/lib/libvarnish/vsb.c
index cb2b5eab1..67a4efec8 100644
--- a/lib/libvarnish/vsb.c
+++ b/lib/libvarnish/vsb.c
@@ -684,9 +684,9 @@ VSB_tofile(const struct vsb *s, int fd)
 		r = write(fd, p, sz);
 		if (r < 0)
 			return (-1);
-		assert(r <= sz);
+		assert((typeof(sz))r <= sz);
 		p += r;
 		sz -= r;
 	}
-	return (r >= 0 ? 0 : -1);
+	return (0);
 }