Do not trim testdox text when it contains $ character

[kubawerlos]

Fixes #5949

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.14%. Comparing base (3c69d31) to head (ad4c209).
Report is 3 commits behind head on 10.5.

Additional details and impacted files

@@            Coverage Diff            @@
##               10.5    #5950   +/-   ##
=========================================
  Coverage     94.14%   94.14%           
  Complexity     6443     6443           
=========================================
  Files           678      678           
  Lines         19437    19437           
=========================================
  Hits          18299    18299           
  Misses         1138     1138           

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