* pkgng: Add support for upgrading all installed packages
Adds support for ``name: "*", state: latest`` to upgrade all installed
packages, similar to other package providers.
Co-authored-by: Felix Fontein <felix@fontein.de>
* pkgng: Improve wording for warning in example, fix formatting
* pkgng.py: Fix capitalization
Co-authored-by: Felix Fontein <felix@fontein.de>
Co-authored-by: Davíð Steinn Geirsson <david@isnic.is>
Co-authored-by: Felix Fontein <felix@fontein.de>
