tools/docs: sphinx-build-wrapper: -q is a boolean, not an integer

tools/docs: sphinx-build-wrapper: -q is a boolean, not an integer

As reported by Konstantin, sphinx-build -q is a boolean, not an integer.

Fix the code.

Reported-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Closes: https://lore.kernel.org/all/871pnepxfy.fsf@trenco.lwn.net/
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <cafa10cddce3e5342a66c73f3f51a17fb6c7f5d3.1759851791.git.mchehab+huawei@kernel.org>