Fix regex search tooltip

[d-buchmann]

Also tried to simplify the wording

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.80%. Comparing base (0e1a932) to head (bbeaff0).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1523      +/-   ##
============================================
- Coverage     61.82%   61.80%   -0.02%     
  Complexity     9728     9728              
============================================
  Files           724      724              
  Lines         31302    31302              
============================================
- Hits          19353    19347       -6     
- Misses        11949    11955       +6     

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[jbtronics]

Looks good. Thanks.