docs: set language to english

It seems recent versions of Sphinx has started issuing a warning when
language isn't set to a recognized value. Since we're building with
warnings as errors on CI, this causes issues for people.

We're writing English docs, so we should set this to English. I probably
confused this setting with the highlight_language setting or something
when I set this up initially.

Fixes: 00cd1346bf0 ("docs: use sphinx")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6711
Reviewed-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17159>

diff --git a/docs/conf.py b/docs/conf.py
index ab4c338..9639951 100644 (file)
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -74,7 +74,7 @@ release = 'latest'
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.