Try improving error reporting
Try improving error reporting

when formatting wide strings into narrow.
seungrye/cppformat,mojoBrendan/fmt,blaquee/cppformat,lightslife/cppformat,dean0x7d/cppformat,mojoBrendan/fmt,cppformat/cppformat,seungrye/cppformat,Jopie64/cppformat,lightslife/cppformat,seungrye/cppformat,blaquee/cppformat,Jopie64/cppformat,alabuzhev/fmt,cppformat/cppformat,Jopie64/cppformat,mojoBrendan/fmt,dean0x7d/cppformat,wangshijin/cppformat,wangshijin/cppformat,blaquee/cppformat,dean0x7d/cppformat,cppformat/cppformat,lightslife/cppformat,alabuzhev/fmt,nelson4722/cppformat,alabuzhev/fmt,wangshijin/cppformat,nelson4722/cppformat,nelson4722/cppformat