4401. [misc] Change LICENSE to MPL 2.0.
update copyright notice / whitespace
Code cleanups (#41656)
win32: new -> newtable (cherry picked from commit 5060d8639e932680456ab07519687d68298be5e0)
check isc_mutext_init and destoy mutex when done
update copyrights
move declaration to start of block
[master] servfail cache 3943. [func] SERVFAIL responses can now be cached for a limited time (configured by "servfail-ttl", default 10 seconds, limit 30). This can reduce the frequency of retries when an authoritative server is known to be failing, e.g., due to ongoing DNSSEC validation problems. [RT #21347]