Log Message:
Update sysutils/rsyslog 8.20.0.

Version 8.20.0 [v8-stable] 2016-07-12
- NEW BUILD REQUIREMENT: librelp, was 1.2.5, now is 1.2.12
  This is only needed if --enable-relp is used. The new version is
  needed to support the new timeout parameter in omrelp.
- NEW BUILD SUGGESTION: libfastjson 0.99.3
- omrelp: add configurable connection timeout
- pmrfc3164: add support for slashes in hostname
- bugfix omfile: handle chown() failure correctly
- omfile now better conveys status of unwritable files back to
  core
- config files recursively including themselfes are now detected
  and an error message is emitted in that case
- refactored code to not emit compiler warnings in "strict mode"
- bugfix: fix some issues with action CommitTransaction() handling
- bugfix omqmqp1: connecting to the message bus fails on
  nonstandard port
- testbench/CI enhancements
  - new tests for RELP components
  - new tests for core action processing and retry
  - travis tests now also run against all unstable versions of
    supporting libraries. This helps to track interdependency
    problems early.
  - new tests for hostname parsing
  - new tests for RainerScript comparisons