Backport PR #12322 on branch v3.0.0-doc (Fix the docs build.)#12332

QuLogic merged 1 commit into

matplotlib:v3.0.0-docmatplotlib/matplotlib:v3.0.0-docfrom

meeseeksmachine:auto-backport-of-pr-12322-on-v3.0.0-docmeeseeksmachine/matplotlib:auto-backport-of-pr-12322-on-v3.0.0-docCopy head branch name to clipboard