Update init/freebsd to not use perl

When using couchpotato on slimmed down versions of freebsd (freenas for example) sometimes perl is not available. Since the previous parsing of the INI required a "key = value" format it is pretty simple to use awk for this.
nzbx description
Merge commit 'b14a6c1e63147d28613a227b35e64164af270051'