Fixes #989 - make --help same as help command

[osdevisnot]

No description provided.

[codecov-io]

Codecov Report

Merging #991 into master will decrease coverage by 1.15%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master    #991      +/-   ##
=========================================
- Coverage   89.46%   88.3%   -1.16%     
=========================================
  Files          68      68              
  Lines        3341    3250      -91     
=========================================
- Hits         2989    2870     -119     
- Misses        352     380      +28

Impacted Files	Coverage Δ
src/visitors/fs.js	57.63% <0%> (-22.23%)	⬇️
src/visitors/dependencies.js	76.62% <0%> (-9.1%)	⬇️
src/assets/CSSAsset.js	81.73% <0%> (-4.35%)	⬇️
src/visitors/globals.js	92.3% <0%> (-3.85%)	⬇️
src/transforms/babel.js	87.37% <0%> (-2.43%)	⬇️
src/WorkerFarm.js	91.93% <0%> (-1.62%)	⬇️
src/Logger.js	96.55% <0%> (-1.15%)	⬇️
src/utils/getTargetEngines.js	95.5% <0%> (-1.13%)	⬇️
src/assets/JSAsset.js	90.83% <0%> (-0.77%)	⬇️
src/assets/CoffeeScriptAsset.js	100% <0%> (ø)	⬆️
... and 6 more

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[davidnagli]

Let's wait for feedback on RFC #989 before we merge