ports-mgmt/pkg: update to 1.17.2

- make audit.h c++ friendly
- fix build with libressl
- autoremove now respects -q
- version: reports error if INDEX file does not exists but is expected
- periodic audit:
  * Allow user to specify which jail not to audit
  * New option to ignore deprecation and expiration warnings
  * Reduce verbosity of the report
  * Add a script to audit base
- register: implement -N to actually not register in the database
- fetch: do not count cached package in the list to be fetched
- query: -e is not supported as additional condition
- fix pkg not finding its db when run from a directory which does not exists
  anymore
- De-prioritize upgrade-removals in the solver
- triggers:
  * run them for pkg register and pkg add
  * Add pkg.readdir lua function
  * Add documentation for the triggers