Always use forward slash when splitting target names

[kommendorkapten]

Even when running on Windows, the targets in the root uses forward slash.

Closes #605

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.51%. Comparing base (454b121) to head (b96df71).
Report is 24 commits behind head on master.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #612   +/-   ##
=======================================
  Coverage   70.51%   70.51%           
=======================================
  Files          10       10           
  Lines        2123     2123           
=======================================
  Hits         1497     1497           
  Misses        505      505           
  Partials      121      121           

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[rdimitrov]

Ah, nice catch! 🚀 I was expecting the issue to be in the library.