Use std.stdio instead of the deprecated std.stream.
Use std.stdio instead of the deprecated std.stream.

Since opening non-ASCII filenames on Windows is fixed for the latest DMD version, it now only has to be made sure to use a recent compiler to build DUB.

D-Programming-Language/dub,jelmansouri/dub,grogancolin/dub,gedaiu/dub,jeanbaptistelab/dub,Geod24/dub,p0nce/dub,Flamaros/dub,rjframe/dub