user.texinfo: Update apt-add-repository command line.
authorMatt Birkholz <matt@birchwood-abbey.net>
Fri, 3 Nov 2017 08:24:11 +0000 (01:24 -0700)
committerMatt Birkholz <matt@birchwood-abbey.net>
Fri, 3 Nov 2017 08:24:11 +0000 (01:24 -0700)
commit815cb527e958e43a1f1a7458ebc302da0d8eebf5
treeb68a57f50b0f1753826b72c5f9e22bab5eafc210
parent9b1eff658f654630ea74eb8278b1e3542e5c5e25
user.texinfo: Update apt-add-repository command line.

Explain how package and system upgrades are intended to work.
doc/user-manual/user.texinfo