• Fix build after the manpage handling changes in r523104
• Disable the ZEITGEIST option by default and add "broken" to the comment.

The zeitgeist port only provides python 2 libraries. If catfish is
compiled with the ZEITGEIST option on, it compiles and runs fine,
but the zeitgeist support is not present anyway.

Reported by: Marko Cupać <marko.cupac@mimar.rs>