https://bugs.gentoo.org/938694
https://github.com/TigerVNC/tigervnc/commit/4f6a3521874da5a67fd746389cfa9b6199eb3582

From 4f6a3521874da5a67fd746389cfa9b6199eb3582 Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Mon, 29 Jul 2024 16:16:08 +0200
Subject: [PATCH] Add missing comma in default security type list

Otherwise it merges with the next entry, removing both of them from the
default list.
--- a/common/rfb/SecurityClient.cxx
+++ b/common/rfb/SecurityClient.cxx
@@ -60,7 +60,7 @@ StringParameter SecurityClient::secTypes
  "X509Plain,TLSPlain,X509Vnc,TLSVnc,X509None,TLSNone,"
 #endif
 #ifdef HAVE_NETTLE
- "RA2,RA2_256,RA2ne,RA2ne_256,DH,MSLogonII"
+ "RA2,RA2_256,RA2ne,RA2ne_256,DH,MSLogonII,"
 #endif
  "VncAuth,None",
 ConfViewer);