#18391 - corrected some messages to return proper english

[gentledepp]

Description

Resolves #18391

corrected some messages to return proper english

Checklist

• I fully tested it as developer / designer and created unit / integration tests
• I documented it (or no need to document or I will create a separate documentation issue)

How to test it?

Please describe how this can be tested by the test engineers if it is not already explicit - or remove this section if no need to description.

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (260507f) 51.58% compared to head (e301f59) 51.58%.
Report is 9 commits behind head on dev.

Files	Patch %	Lines
...NetCore/SecurityStampValidatorOptionsExtensions.cs	0.00%	4 Missing ⚠️
...ttp/Client/DynamicProxying/ApiDescriptionFinder.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #18392      +/-   ##
==========================================
- Coverage   51.58%   51.58%   -0.01%     
==========================================
  Files        3073     3073              
  Lines       96815    96818       +3     
  Branches     7707     7707              
==========================================
  Hits        49941    49941              
- Misses      45346    45349       +3     
  Partials     1528     1528              

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[maliming]

Thanks. 👍