Refactor include/poac/util/pretty.hpp

[ken-matsui]

No description provided.

[codecov]

Codecov Report

Merging #371 (68f77ba) into master (ffcefa8) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #371   +/-   ##
=======================================
  Coverage   78.16%   78.16%           
=======================================
  Files          52       52           
  Lines        2418     2418           
=======================================
  Hits         1890     1890           
  Misses        528      528           

Impacted Files	Coverage Δ
include/poac/util/pretty.hpp	100.00% <100.00%> (ø)

---

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 ffcefa8...ba553a7. Read the comment docs.