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The BusyBox version of sed treats leading '\+' in a regular expression
to be matched as a syntax error ("Repetition not preceded by valid
expression"), which triggers false positives for the "digdelv" system
test.  Make the relevant sed invocations work portably across all sed
implementations by removing the leading backslash.

Matthijs Mekking authored Apr 05, 2019 and Mark Andrews committed Apr 10, 2019

This also fixes a bug in the tests ($n was not incremented in one
place).

Michał Kępień authored Jan 18, 2019 and Evan Hunt committed Jan 24, 2019

dig retries a TCP query when a server closes the connection prematurely.
However, dig's exit code remains unaffected even if the second attempt
to get a response also fails with the same error for the same lookup,
which should not be the case.  Ensure the exit code is updated
appropriately when a retry triggered by a TCP EOF condition fails.

This reverts commit 4af9f971, reversing
changes made to 0289f3f2.

The output of certain "dig +idnout" invocations may be locale-dependent.
Remove the "dig +idnout" subtest from the "digdelv" system test as IDN
support is already thoroughly tested by the "idna" system test.

- add CHANGES note
- update copyrights and license headers
- add -j to the make commands in .gitlab-ci.yml to take
  advantage of parallelization in the gitlab CI process

                        [RT #46806]

4712.	[bug]		"dig +domain" and "dig +search" didn't retain the
			search domain when retrying with TCP. [RT #45547]

4690.	[bug]		Command line options -4/-6 were handled inconsistently
			between tools. [RT #45632]

                        messages. [RT #44804]

4684.	[bug]		delv could send bogus DNS queries when an explicit
			server address was specified on the command line along
			with -4/-6. [RT #45804]

                        for Multicast DNS. [RT #44783]

                        [RT #44683]

4555.	[func]		dig +ednsopt: EDNS options can now be specified by
			name in addition to numeric value. [RT #44461]

                        display in punycode or not.  Requires idn support
                        to be enabled at compile time. [RT #43398]

                        +onesoa, +qr, +ttlid, +ttlunits and -u per lookup
                        rather than global. [RT #42450]