Should show usage without argments #274

[Devel08]

resolves #274

[sylvestre]

Please add a test to make sure we don't regress in the future? Thanks

[Devel08]

@sylvestre Done, I also changed the test_missing_script_argument test, because it inputted no arguments, thus it was expected to receive --help. It now inputs arguments only for a file, but not a script

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.23%. Comparing base (60243b4) to head (477b2a3).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
src/sed/mod.rs	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #409      +/-   ##
==========================================
- Coverage   82.29%   82.23%   -0.06%     
==========================================
  Files          13       13              
  Lines        5534     5538       +4     
  Branches      310      311       +1     
==========================================
  Hits         4554     4554              
- Misses        977      981       +4     
  Partials        3        3              

Flag	Coverage Δ
macos_latest	82.91% <0.00%> (-0.07%)	⬇️
ubuntu_latest	83.02% <0.00%> (-0.07%)	⬇️
windows_latest	0.00% <0.00%> (ø)

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[Devel08]

I always forget the cargo fmt :/