Subversion 1.14.2 on Linux how to enable plaintext password store?

When I installed subversion on a Raspberry Pi4B and checked the installed
version afterwards it printed this:

$ svn --version
svn, version 1.14.2 (r1899510)
   compiled Nov 12 2022, 20:30:30 on arm-unknown-linux-gnueabihf

Copyright (C) 2022 The Apache Software Foundation.
This software consists of contributions made by many people;
see the NOTICE file for more information.
Subversion is open source software, see http://subversion.apache.org/

< cut >

The following authentication credential caches are available:

* Plaintext cache in /home/bosse/.subversion
* Gnome Keyring
* GPG-Agent
* KWallet (KDE)

I have had a lot of problems with password caching for a number of years since I
am working on these devices mainly on the command line via ssh and when I issue
a svn command against a server on our LAN what happens is that svn pops up a
password entry dialog on the (invisible) **GUI screen**!
And the operation started on the command line fails...

It was not always so but some svn update changed the way svn operates....

Now I see the banner above where it looks like it is again available:

* Plaintext cache in /home/bosse/.subversion

The problem is that in the config file there is no example of the syntax for
enabling this....

So my question here is:
How do I enable the plaintext cache in svn client version 1.14.2 on a Raspberry
Pi4B running Pi-OS?


-- 
Bo Berglund
Developer in Sweden