archive: some minor fixes

[p4u]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 7017631785

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A quick fix for this PR: rebase it; your next report should be accurate.

• 42 of 74 (56.76%) changed or added relevant lines in 10 files are covered.
• 18 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.06%) to 61.596%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
data/datamocktest/datamocktest.go	1	2	50.0%
data/downloader/downloader.go	13	14	92.86%
vochain/indexer/process.go	4	5	80.0%
cmd/node/main.go	3	5	60.0%
vochain/indexer/vote.go	4	7	57.14%
service/ipfs.go	5	9	55.56%
vochain/processarchive/processarchive.go	1	9	11.11%
data/ipfs/ipfs.go	7	19	36.84%

Files with Coverage Reduction	New Missed Lines	%
service/ipfs.go	1	46.15%
vochain/indexer/archive.go	2	76.42%
data/ipfs/ipfs.go	3	53.07%
vochain/indexer/db/processes.sql.go	6	85.37%
vochain/state/cache.go	6	56.41%

Totals
Change from base Build 7017285947:	-0.06%
Covered Lines:	14677
Relevant Lines:	23828

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💛 - Coveralls