Re: Adding a TAP test checking data consistency on standby with minRecoveryPoint

Hi,

I applied the patch on current master and run the tests, but I am afraid that the newly introduced test failed on installcheck-world:

```t/016_min_consistency.pl ............. # Looks like your test exited with 29 before it could output anything.
t/016_min_consistency.pl ............. Dubious, test returned 29 (wstat 7424, 0x1d00)
Failed 2/2 subtests

Test Summary Report
-------------------
t/016_min_consistency.pl           (Wstat: 7424 Tests: 0 Failed: 0)
  Non-zero exit status: 29
  Parse errors: Bad plan.  You planned 2 tests but ran 0.
Files=16, Tests=143, 65 wallclock secs ( 0.04 usr  0.04 sys +  6.53 cusr  5.08 csys = 11.69 CPU)
Result: FAIL```

To be honest, I have not checked closely on the failure, still it is the only test failing which by itself should be worthwhile mentioning.