Some operations of some TWiki scripts (e.g. rename action=renameweb) requires the POST request method.
There is no way to specify a request method from CLI, hence those scripts cannot be executed from command line. Even the example of running the "save" script from command line on TWikiScripts does not work, which is embarrassing.
$request->request_method() returning undef causes a warning.
Description and Documentation
Set a request method (GET by default) in the request attribute of an Engine::CLI object.
Recognize "-method METHOD" on a command line argument as request method specification. This is in parallel with "-user USER' specifies the user.