Merge pull request #10428 from omoerbeek/rec-tls

Rec: cleanup of outgoing TCP code and DoT to auth or forwarders

diff --cc pdns/pdns_recursor.cc
Simple merge

diff --cc pdns/recursordist/Makefile.am
Simple merge

diff --cc pdns/recursordist/docs/settings.rst
Simple merge

diff --cc pdns/recursordist/test-syncres_cc.cc
Simple merge