Suricata

We do have some manpages now, which ones are missing?

I would add `man suricata-update` and `man suricatasc`

I think I'm halfway through this but wanted to confirm if using Sphinx is the right thing or am I supposed to use help2man as in the description? suricata-update does have a sphinx target to make very detailed man pages, I think suricatasc and suricatactl are the only ones left TBD.

I prefer sphinx based, just like the suricata one. The ticket predates our sphinx use.