Fetch: block ports 4190 & 6679

For https://github.com/whatwg/fetch/issues/1663.
diff --git a/fetch/api/request/request-bad-port.any.js b/fetch/api/request/request-bad-port.any.js
index b0684d4..5c29823 100644
--- a/fetch/api/request/request-bad-port.any.js
+++ b/fetch/api/request/request-bad-port.any.js
@@ -72,6 +72,7 @@
     2049, // nfs
     3659, // apple-sasl
     4045, // lockd
+    4190, // sieve
     5060, // sip
     5061, // sips
     6000, // x11
@@ -81,6 +82,7 @@
     6667, // irc (default)
     6668, // irc (alternate)
     6669, // irc (alternate)
+    6679, // osaut
     6697, // irc+tls
     10080, // amanda
 ];
diff --git a/tools/wptserve/wptserve/utils.py b/tools/wptserve/wptserve/utils.py
index e711e40..403c359 100644
--- a/tools/wptserve/wptserve/utils.py
+++ b/tools/wptserve/wptserve/utils.py
@@ -141,6 +141,7 @@
         2049,  # nfs
         3659,  # apple-sasl
         4045,  # lockd
+        4190,  # sieve
         5060,  # sip
         5061,  # sips
         6000,  # x11
@@ -150,6 +151,7 @@
         6667,  # irc (default)
         6668,  # irc (alternate)
         6669,  # irc (alternate)
+        6679,  # osaut
         6697,  # irc+tls
         10080,  # amanda
     ]
diff --git a/websockets/Create-blocked-port.any.js b/websockets/Create-blocked-port.any.js
index 2962312..b8e3e26 100644
--- a/websockets/Create-blocked-port.any.js
+++ b/websockets/Create-blocked-port.any.js
@@ -79,6 +79,7 @@
   2049, // nfs
   3659, // apple-sasl
   4045, // lockd
+  4190, // sieve
   6000, // x11
   6566, // sane-port
   6665, // irc (alternate)
@@ -86,6 +87,7 @@
   6667, // irc (default)
   6668, // irc (alternate)
   6669, // irc (alternate)
+  6679, // osaut
   6697, // irc+tls
   10080, // amanda
 ].forEach(blockedPort => {