Swift 4

[ghost]

No description provided.

[codecov-io]

Codecov Report

Merging #36 into master will increase coverage by <.01%.
The diff coverage is 90.9%.

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
+ Coverage   97.01%   97.02%   +<.01%     
==========================================
  Files          39       39              
  Lines        1543     1546       +3     
==========================================
+ Hits         1497     1500       +3     
  Misses         46       46

Impacted Files	Coverage Δ
Source/RunResults.swift	87.5% <0%> (ø)	⬆️
Source/ChooseSettings.swift	100% <100%> (ø)	⬆️
Source/Env.swift	100% <100%> (ø)	⬆️
Source/Argument.swift	90.9% <100%> (ø)	⬆️
Source/Ask.swift	96.77% <100%> (ø)	⬆️

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[ghost]

i'm not sure what's up with the code coverage failure here, ¿what can i do to help?