for va_list, use VSLv

src/vmod_hoailona.c

@@ -109,7 +109,7 @@ errmsg(VRT_CTX, const char *fmt, ...)
 		VSLbv(ctx->vsl, SLT_VCL_Error, fmt, args);
 	else
 		/* Should this ever happen in vcl_fini() ... */
-		VSL(SLT_VCL_Error, 0, fmt, args);
+		VSLv(SLT_VCL_Error, 0, fmt, args);
 	va_end(args);
 }