Unrecognized character escape sequence in test.cc L6245

[olivier-fs]

Hi!

The title should be self-descriptive ;-)

 $ cmake --build ~/build/cpp/www-src/cpp-httplib-0.14.1/Release --config Release
Microsoft (R) Build Engine version 16.11.2+f32259642 pour .NET Framework
Copyright (C) Microsoft Corporation. Tous droits r�serv�s.

  1>Checking Build System
  test.cc
C:\Users\olivier\dev\cpp\www-src\cpp-httplib-0.14.1\test\test.cc(6245,14): warning C4129: '%': unrecognized character escape sequence [C:\Users\olivier\build\cpp\www-src\cpp-httplib-0.14.1\Release\test\httplib-test.vcxproj]
  httplib-test.vcxproj -> C:\Users\olivier\build\cpp\www-src\cpp-httplib-0.14.1\Release\test\Release\httplib-test.exe
  Building Custom Rule C:/Users/olivier/dev/cpp/www-src/cpp-httplib-0.14.1/CMakeLists.txt

test.cpp L6245

"Content-Disposition: form-data; filename*=\"UTF-8''\%41.txt\"; "

Latest cpp-httplib-0.14.1 release.
I think it is not platform related, but that't with latest MS VS2019 cl 19.29.30152 for x64.

Regards

[yhirose]

@olivier-fs thanks for the report!

[olivier-fs]

👍 You do all the hard work ! Thx for this nice lib.
I'm big asio user but not everything has to be async.