Convert :if blocks to ifelse calls

[HarrisonGrodin]

Fixes #132.

[codecov]

Codecov Report

Merging #134 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master    #134      +/-   ##
=========================================
+ Coverage   93.88%   93.9%   +0.01%     
=========================================
  Files          11      11              
  Lines         360     361       +1     
=========================================
+ Hits          338     339       +1     
  Misses         22      22

Impacted Files	Coverage Δ
src/utils.jl	91.66% <100%> (+0.17%)	⬆️

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