4903. [bug] "check-mx fail;" did not prevent MX records containing
IP addresses from being added to a zone by a dynamic
update. [GL #112]
(cherry picked from commit
1d403f9d3c09960fc443f33bd89d2645f1994b3b)
+4903. [bug] "check-mx fail;" did not prevent MX records containing
+ IP addresses from being added to a zone by a dynamic
+ update. [GL #112]
+
+4902. [test] Improved the reliability of the 'ixfr' system
+ test. [GL #66]
+
4899. [test] Convert most of the remaining system tests to be able
to run in parallel, continuing the work from change
#4895. To take advantage of this, use "make -jN check",