[dpdk-dev] [PATCH] doc: make sphinx comply with meson werror option

[Thomas Monjalon]

> When the --werror meson build option is set, we can pass the "-W",
> warning-as-errors, flag to sphinx to get the same behaviour for doc
> building as for building the rest of DPDK. This can help catch
> documentation errors sooner in the development process.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>

Applied, thanks