Availability of manpages

[alexander-held]

Manpages are currently not available on coffea-casa (tested on the open data instance at UNL):

$ man git
This system has been minimized by removing packages and content that are
not required on a system that users do not log into.

To restore this content, including manpages, you can run the 'unminimize'
command. You will still need to ensure the 'man-db' package is installed.

It might be useful to have them available for analyzers who make use of the terminal and would like to quickly look up something there.