DOC: fix typo about no-tls-tickets

It's "no-tls-tickets", not "no-tlsv-tickets"

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
diff --git a/doc/configuration.txt b/doc/configuration.txt
index b508db2..ab501ea 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -12806,7 +12806,7 @@
   setting which would have been inherited from "default-server" directive as
   default value.
   It may also be used as "default-server" setting to reset any previous
-  "default-server" "no-tlsv-tickets" setting.
+  "default-server" "no-tls-tickets" setting.
 
 verify [none|required]
   This setting is only available when support for OpenSSL was built in. If set