Fix build docs on with newer pip versions
Fix build docs on with newer pip versions

A patch for 3b224e18136013f3765b8df407cc537f32c93885

mojoBrendan/fmt,nelson4722/cppformat,seungrye/cppformat,alabuzhev/fmt,cppformat/cppformat,Jopie64/cppformat,wangshijin/cppformat,cppformat/cppformat,blaquee/cppformat,alabuzhev/fmt,nelson4722/cppformat,blaquee/cppformat,dean0x7d/cppformat,blaquee/cppformat,lightslife/cppformat,dean0x7d/cppformat,dean0x7d/cppformat,seungrye/cppformat,seungrye/cppformat,cppformat/cppformat,wangshijin/cppformat,nelson4722/cppformat,Jopie64/cppformat,lightslife/cppformat,mojoBrendan/fmt,lightslife/cppformat,wangshijin/cppformat,mojoBrendan/fmt,alabuzhev/fmt,Jopie64/cppformat