Workaround coverage bug part 2

[zeripath]

Just grep away bad lines from coverage files. (Follow on from #16887)

Related #16887
Related #1441

Signed-off-by: Andrew Thornton art27@cantab.net

[codecov-commenter]

Codecov Report

Merging #16906 (4cd2ad2) into main (cbf05c3) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #16906      +/-   ##
==========================================
- Coverage   45.52%   45.50%   -0.02%     
==========================================
  Files         762      762              
  Lines       86140    86140              
==========================================
- Hits        39213    39200      -13     
- Misses      40616    40629      +13     
  Partials     6311     6311              

Impacted Files	Coverage Δ
modules/indexer/stats/db.go	42.85% <0.00%> (-10.72%)	⬇️
modules/charset/charset.go	71.71% <0.00%> (-4.05%)	⬇️
modules/queue/workerpool.go	51.90% <0.00%> (-3.06%)	⬇️
modules/git/repo_language_stats_nogogit.go	47.56% <0.00%> (-2.44%)	⬇️
modules/log/file.go	73.60% <0.00%> (-1.61%)	⬇️
modules/git/blame.go	65.71% <0.00%> (-1.43%)	⬇️
modules/git/batch_reader.go	49.09% <0.00%> (-1.22%)	⬇️
models/issue_comment.go	51.76% <0.00%> (+0.29%)	⬆️
services/pull/pull.go	42.19% <0.00%> (+0.40%)	⬆️
modules/process/manager.go	75.30% <0.00%> (+2.46%)	⬆️
... and 1 more

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