To control trimming doctest flags manually, this adds new options
:trim-doctest-flags: and :no-trim-doctest-flags: to doctest
directives. It helps to describes doctest module itself in python
doc (see #6698).
When I first read this section, I was mightily confused due to lack of context and the use of the passive voice.
I think this phrasing clarifies the context and indicates more clearly what the documentation author does
vs what the doctest extension and builder do.
But I'm a newbie here, so please ensure that I got this right....
