MFH: r480174 r480176 r482890 r482891 r483797 r483797 r483798 r483798 r484911 r484916 r484916 r485589 r487359 r487359 r487359
Update to 9.11.5-P1, 9.12.3-P1, 9.13.5.
While there:
- Don't disable symbol table generation when building WITH_DEBUG.
- Try and make sure nullfs can really be used in a more robustt and centralized way.
- Make sure all changes are sync'ed among all BIND9 ports.
(Also, all the changes in between the previous merge.)
Approved by: ports-secteam (blanket, runtime fixes in these latest versions.)