autofunction:: xdist.is_xdist_master generates incorrect description

[TB-HunBoka]

On the https://pytest-xdist.readthedocs.io/en/stable/how-to.html#xdist.is_xdist_master url, for me the description is: Return True if this is the xdist controller, False otherwise.

Based on the original ticket: https://github.com/pytest-dev/pytest-xdist/issues/504 It should be: Return True if this is the xdist master, False otherwise.