[pgpool-committers: 4582] pgpool: Add new regression test for node 0 not being primary.

[Tatsuo Ishii]

Add new regression test for node 0 not being primary.

Branch
------
V3_7_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=f0c510f797d91313e0c7bc52b334f82d0416a0ce

Modified Files
--------------
.../tests/016.node_0_is_not_primary/test.sh        | 63 ++++++++++++++++++++++
1 file changed, 63 insertions(+)