[master] beac5f6 Remove unexplained acronym.

[Lasse Karstensen]

commit beac5f65084cd8accfc71a7302f7c92d246e7026
Author: Lasse Karstensen <lkarsten at varnish-software.com>
Date:   Thu Apr 14 08:52:45 2016 +0200

    Remove unexplained acronym.
    
    I don't think we can assume that everyone knows that PSK is, and
    with the extensive acronym soup in use in Varnish it is hard
    for the user to know if we have overloaded it.

diff --git a/doc/sphinx/reference/varnish-cli.rst b/doc/sphinx/reference/varnish-cli.rst
index fa2fc76..203ac60 100644
--- a/doc/sphinx/reference/varnish-cli.rst
+++ b/doc/sphinx/reference/varnish-cli.rst
@@ -242,8 +242,8 @@ the functions Varnish code uses to read and write CLI response.
 
 .. _ref_psk_auth:
 
-How -S/PSK Authentication Works
--------------------------------
+Authentication with -S
+----------------------
 
 If the -S secret-file is given as argument to varnishd, all network
 CLI connections must authenticate, by proving they know the contents