Merge pull request #5979 from mind04/logstring

Use toLogString() for logging and throwing

diff --cc modules/mydnsbackend/mydnsbackend.cc
Simple merge

diff --cc pdns/dbdnsseckeeper.cc
Simple merge

diff --cc pdns/dnsparser.cc
Simple merge

diff --cc pdns/dnssecinfra.cc
Simple merge

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

diff --cc pdns/resolver.cc
Simple merge

diff --cc pdns/slavecommunicator.cc
Simple merge

diff --cc pdns/syncres.cc
Simple merge

diff --cc pdns/validate.cc
Simple merge

diff --cc pdns/ws-recursor.cc
Simple merge