auth, rec: update option text and docs to clarify logging is to stderr, not stdout

[Habbie]

PRing now so I don't forget, but this is not done: done:

• update docs
• check what dnsdist does

[Habbie]

check what dnsdist does

dnsdist logs to stdout and says this correctly in the help text for --disable-syslog and --log-timestamps

[coveralls]

Pull Request Test Coverage Report for Build 8394648928

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 49 unchanged lines in 10 files lost coverage.
• Overall coverage decreased (-0.03%) to 59.209%

---

Files with Coverage Reduction	New Missed Lines	%
pdns/backends/gsql/gsqlbackend.hh	1	97.71%
pdns/pollmplexer.cc	1	82.39%
pdns/dnsdistdist/dnsdist-backend.cc	2	66.76%
pdns/packethandler.cc	3	72.51%
pdns/dnsdistdist/dnsdist-carbon.cc	3	63.9%
pdns/tsigverifier.cc	3	77.22%
pdns/iputils.hh	4	74.8%
pdns/recursordist/test-syncres_cc1.cc	7	89.61%
pdns/dnsdistdist/dnsdist-tcp.cc	8	75.83%
modules/godbcbackend/sodbc.cc	17	70.8%

Totals
Change from base Build 8392275634:	-0.03%
Covered Lines:	113625
Relevant Lines:	158756

---

💛 - Coveralls