all: apply gofmt simplify

[sbinet]

No description provided.

[codecov-io]

Codecov Report

Merging #9 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master       #9   +/-   ##
=======================================
  Coverage   64.43%   64.43%           
=======================================
  Files          55       55           
  Lines        9772     9772           
=======================================
  Hits         6297     6297           
  Misses       3008     3008           
  Partials      467      467

Impacted Files	Coverage Δ
parser/y.go	67.13% <ø> (ø)	⬆️
compile/compile.go	91.17% <100%> (ø)	⬆️
py/string.go	85.32% <100%> (ø)	⬆️

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