snapshots: adding pacman command line as description

[vlaci]

I'd like to get more information from snapshot descriptions. Unfortunatley pacman doesn't give a way to access much data for hooks, but the command line of the executing pacman process should be sufficient most of the times.

Open questions

• [ ] Is there a more elegant way to gather parent's cmdline?
• [ ] Do we need to gather it twice or save it the same way as pre snapshot numbers?
• [ ] Is pre/post detail in description required? It is already present in the snapshot type field

What do you think?

[wesbarnett]

Hi, I just saw this pull request. Sorry for taking so long to get back with you. I actually just implemented something like this in the most recent release. Take a look at it and let me know what you think.

[vlaci]

:+1: