Use VSB_destroy() where applicable

bin/varnishd/mgt/mgt_param.c

@@ -738,7 +738,7 @@ MCF_ParamConf(enum mcf_which_e which, const char * const param,
 	va_end(ap);
 	AZ(VSB_finish(vsb));
 	mcf_dyn_vsb(which, pp, vsb);
-	VSB_delete(vsb);
+	VSB_destroy(&vsb);
 }
 
 /*--------------------------------------------------------------------*/

bin/varnishd/proxy/cache_proxy_proto.c

@@ -755,7 +755,7 @@ VPX_Send_Proxy(int fd, int version, const struct sess *sp)
 	    version == 2 ? VSB_QUOTE_HEX : 0);
 	AZ(VSB_finish(vsb2));
 	VSL(SLT_Debug, 999, "PROXY_HDR %s", VSB_data(vsb2));
-	VSB_delete(vsb2);
+	VSB_destroy(&vsb2);
 	return (r);
 }
 

lib/libvarnish/vsb_test.c

@@ -44,7 +44,7 @@ main(int argc, char *argv[])
 		printf("\n");
 		VSB_clear(vsb);
 	}
-	VSB_delete(vsb);
+	VSB_destroy(&vsb);
 	printf("error is %i\n", err);
 	return (err);
 }

lib/libvmod_vtc/vmod_vtc.c

@@ -362,7 +362,7 @@ vmod_proxy_header(VRT_CTX, VCL_ENUM venum, VCL_IP client, VCL_IP server,
 	VRT_Format_Proxy(vsb, version, client, server, authority);
 	l = VSB_len(vsb);
 	h = WS_Copy(ctx->ws, VSB_data(vsb), l);
-	VSB_delete(vsb);
+	VSB_destroy(&vsb);
 
 	if (h == NULL) {
 		VRT_fail(ctx, "proxy_header: out of workspace");