Fix draw.KeyDown on macos

[sfyatee]

Fixes #494

[codecov]

Codecov Report

Merging #495 (eea29f9) into master (f9bba99) will not change coverage.
The diff coverage is 0.00%.

❗ Current head eea29f9 differs from pull request most recent head 19aed22. Consider uploading reports for the commit 19aed22 to get more accurate results

@@           Coverage Diff           @@
##           master     #495   +/-   ##
=======================================
  Coverage   58.48%   58.48%           
=======================================
  Files          54       54           
  Lines       10761    10761           
=======================================
  Hits         6294     6294           
  Misses       4032     4032           
  Partials      435      435           

Files	Coverage Δ
text.go	48.89% <0.00%> (ø)

[rjkroege]

Thanks for the patch.