Add a "failOnIncompleteCheck" option to if*up Lua functions

[miodvallat]

Short description

This option, is set to "true", will force the if*up Lua functions to return SERVFAIL, rather than applying the backupSelector, if none of the health checks for the targets to check have completed yet.

And you get a few tab->spaces fixes, at no extra charge!

Checklist

I have:

• read the CONTRIBUTING.md document
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)
• checked all the boxes but the previous one

[coveralls]

Pull Request Test Coverage Report for Build 13029583812

Details

• 0 of 28 (0.0%) changed or added relevant lines in 1 file are covered.
• 42 unchanged lines in 10 files lost coverage.
• Overall coverage increased (+0.007%) to 64.706%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pdns/lua-record.cc	0	28	0.0%

Files with Coverage Reduction	New Missed Lines	%
pdns/lua-record.cc	1	0.19%
pdns/validate.cc	1	68.38%
pdns/dnsdistdist/dnsdist-crypto.cc	2	75.72%
pdns/recursordist/aggressive_nsec.cc	2	66.02%
pdns/tsigverifier.cc	3	77.22%
pdns/iputils.hh	3	77.94%
pdns/recursordist/recpacketcache.hh	3	89.55%
pdns/recursordist/syncres.cc	6	80.38%
pdns/recursordist/test-syncres_cc1.cc	7	89.72%
modules/lmdbbackend/lmdbbackend.cc	14	72.75%

Totals
Change from base Build 13005788889:	0.007%
Covered Lines:	127845
Relevant Lines:	166494

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💛 - Coveralls