properly test for yaml
save why ydump.py failed (cherry picked from commit f5d429e7c32006c40b66b0db063524e4b46a73b5)
update copyright notice / whitespace
[v9_11] add I: when echoing information about failed tests (cherry picked from commit 49740fb0f26e97ee90b0463782aad4a81b2b538f)
4545. [func] Make dnstap-read output more functionally usable. [RT #43642] 4544. [func] Add message/payload size to dnstap-read YAML output. [RT #43622]
4463. [bug] The dnstap system test failed on some systems. [RT #43129] (cherry picked from commit ed7097fc0019874143e979abca9d2b2dbb60894a)
4460. [test] Add system test for dnstap using unix domain sockets. [RT #42926] (cherry picked from commit 3e1fa8411be8baa134083d6893e93406adc038ea)
4454. [bug] 'rndc dnstap -reopen' had a race issue. [RT #43089] (cherry picked from commit 726cddb56447812f7c4080816b08cbae8e96f7b0)
4447. [tuning] Allow the fstrm_iothr_init() options to be set using named.conf to control how dnstap manages the data flow. [RT #42974] (cherry picked from commit 934837913ff197b1a10ad027705d4497fae21e59)
[v9_11] rndc dnstap -roll 4411. [func] "rndc dnstap -roll" automatically rolls the dnstap output file; the previous version is saved with ".0" suffix, and earlier versions with ".1" and so on. An optional numeric argument indicates how many prior files to save. [RT #42830]
4401. [misc] Change LICENSE to MPL 2.0.
4394. [func] Add rndc command "dnstap-reopen" to close and reopen dnstap output filed. [RT #41803]
do not overflow exit status. [RT #42643]
[master] dnstap 4235. [func] Added support in named for "dnstap", a fast method of capturing and logging DNS traffic, and a new command "dnstap-read" to read a dnstap log file. Use "configure --enable-dnstap" to enable this feature (note that this requires libprotobuf-c and libfstrm). See the ARM for configuration details. Thanks to Robert Edmonds of Farsight Security. [RT #40211]