[c++] Clean line endings before comparing in test case DynamicMessage. (#5136) #7318
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Unit test case
TextFormatMapTest.DynamicMessage
is failing due to the line endings when checking out on Windows withautocrlf = true
settings in Git. Git will automatically convert thesrc/google/protobuf/testdata/map_test_data.txt
to CRLF line endings.However, in the code the generated data to compare against expected data (read directly from map_test_data.txt) uses LF line endings, leading to the error.
This solution cleans line endings in the read string.
fixes #5136