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