Foamy beer glass

• Fixes a minor nitpick in main.c.
• Fixes typos in the manpage.
• Install the manpage in a saner directory.

No, there won't be a CVE number for this.

Fixes the following bug: no_new_privs failed to exit with an error (and proceeded to run the specified program) upon prctl(2) failure, resulting in the program being run without this restriction.

First release

Il semble que la perfection soit atteinte non quand il n'y a plus rien
à ajouter, mais quand il n'y a plus rien à retrancher.
-- Antoine de Saint Exupéry