Ports: Update vttest to latest version

Ports/vttest/package.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port=vttest
-version=20200610
+version=20210210
 useconfigure=true
 files="https://invisible-island.net/datafiles/release/vttest.tar.gz vttest.tar.gz"

Ports/vttest/patches/fix-autoconf.patch

@@ -1,13 +1,12 @@
-diff -ru vttest-original/vttest-20190710/config.sub vttest-20190710/config.sub
+diff -Nru vttest-orig/config.sub vttest-20210210/config.sub
---- vttest-original/vttest-20190710/config.sub	2019-06-30 01:32:41.000000000 -0500
+--- vttest-orig/config.sub	2020-08-17 05:36:41.000000000 +0200
-+++ vttest-20190710/config.sub	2019-12-01 03:10:47.708867392 -0600
++++ vttest-20210210/config.sub	2021-02-20 16:22:14.126987759 +0100
-@@ -1347,7 +1347,7 @@
+@@ -1700,7 +1700,7 @@
+ 	     | os9* | macos* | osx* | ios* \
+ 	     | mpw* | magic* | mmixware* | mon960* | lnews* \
+ 	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
+-	     | aos* | aros* | cloudabi* | sortix* | twizzler* \
++	     | aos* | aros* | cloudabi* | sortix* | twizzler* | serenity* \
  	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
  	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
- 	     | knetbsd* | mirbsd* | netbsd* \
+ 	     | mirbsd* | netbsd* | dicos* | openedition* | ose* \
--	     | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* \
-+	     | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* | serenity* \
- 	     | ekkobsd* | kfreebsd* | freebsd* | riscix* | lynxos* \
- 	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
- 	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
-