only error if there are actually missing args

[hipstersmoothie]

What Changed

fixed a bug

Why

even with all required args the CLI would exit

Todo:

• Add tests
• Add docs
• Add SemVer label

[codecov]

Codecov Report

Merging #95 into master will decrease coverage by 0.07%.
The diff coverage is 60%.

@@            Coverage Diff             @@
##           master      #95      +/-   ##
==========================================
- Coverage   75.05%   74.97%   -0.08%     
==========================================
  Files          13       13              
  Lines         946      947       +1     
  Branches      132      138       +6     
==========================================
  Hits          710      710              
  Misses        209      209              
- Partials       27       28       +1

Impacted Files	Coverage Δ
src/cli/args.ts	91.66% <60%> (-1.11%)	⬇️

---

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[codecov]

Codecov Report

Merging #95 into master will decrease coverage by 0.07%.
The diff coverage is 60%.

@@            Coverage Diff             @@
##           master      #95      +/-   ##
==========================================
- Coverage   75.05%   74.97%   -0.08%     
==========================================
  Files          13       13              
  Lines         946      947       +1     
  Branches      132      138       +6     
==========================================
  Hits          710      710              
  Misses        209      209              
- Partials       27       28       +1

Impacted Files	Coverage Δ
src/cli/args.ts	91.66% <60%> (-1.11%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 59d5d7d...832dc27. Read the comment docs.