FYI virt-manager 'master' branch renamed to 'main'

[Cole Robinson <crobinso@xxxxxxxxxx>]

Hi all, I've changed the upstream virt-manager default branch from
'master' branch to 'main'. You can update your local repos with:

git branch -m master main
git branch main --set-upstream remotes/origin/main
git pull origin --prune

Thanks,
Cole