clean up makefile

[houqp]

No description provided.

[codecov-commenter]

Codecov Report

Merging #6 (fb14742) into master (fd59fb2) will decrease coverage by 2.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master       #6      +/-   ##
==========================================
- Coverage   79.47%   77.41%   -2.07%     
==========================================
  Files           4        4              
  Lines         765      695      -70     
==========================================
- Hits          608      538      -70     
+ Misses        115      114       -1     
- Partials       42       43       +1     

Impacted Files	Coverage Δ
pkg/vet/gosource.go	75.00% <0.00%> (-2.48%)	⬇️
pkg/config/config.go	77.77% <0.00%> (-2.23%)	⬇️
pkg/vet/vet.go	78.43% <0.00%> (-1.80%)	⬇️
pkg/vet/comment_parser.go	100.00% <0.00%> (ø)

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