Fix the bind9_rndc plugin wrt Perl 5.18+ hash randomzation.
While there, group all patches for the three ports in munin-common, and remove
an obsolete patch.
PR: 195689
Submitted by: Vlad "Blackflow" K.
Sponsored by: Absolight
Upgrade Munin to 1.4.3. Thanks to Sean Rees <sean@rees.us> for providing
the initial patches and getting me started with this.
Note that munin-main has been renamed to munin-master (see MOVED).
Approved by: portmgr (erwin)
Feature safe: yes