pkg install should set automatic flag to 0 for automatically installed packages

[jrtc27]

If a package is already automatically installed, pkg install should still set the automatic flag to 0 (c.f. apt which does this, for example), since that's the obvious intent. It's less clear whether pkg install -A should set the automatic flag to 1 if manually installed; in some cases that would be what you want, but probably in general it's not, since you're just installing something for the purpose of doing something else, and whoever/whatever manually installed it may wish to keep it around past a subsequent autoremove, so probably one should need to use pkg set -A 1 explicitly.