Squashed 'build-aux/' changes from b019e31..4425ce0
Squashed 'build-aux/' changes from b019e31..4425ce0

4425ce0 (teleproxy) random shell magic

git-subtree-dir: build-aux
git-subtree-split: 4425ce0a609e4a5fce64c27fe7bf6a27b23029e6

datawire/telepresence,datawire/ambassador,datawire/telepresence,datawire/ambassador,datawire/ambassador,datawire/ambassador,datawire/telepresence,datawire/ambassador