Fix call parens unnecessarily expanded new line

[JohnnyMorganz]

Fixes #473

[codecov]

Codecov Report

Merging #474 (87d8e3b) into master (11439aa) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #474   +/-   ##
=======================================
  Coverage   97.48%   97.48%           
=======================================
  Files          14       14           
  Lines        4976     4978    +2     
=======================================
+ Hits         4851     4853    +2     
  Misses        125      125           

Impacted Files	Coverage Δ
src/formatters/functions.rs	98.60% <100.00%> (+<0.01%)	⬆️

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