std: Deprecate 'x'/'X'/'e'/'E' special cases for u8 slices
Let's follow the road paved by the removal of 'z'/'Z', the Formatter
pattern is nice enough to let us remove the remaining four special cases
and declare u8 slices free from any special casing!
cd7c870bd8LemonBoy committed on 3/1/2021, 11:33:10 PM· committed by Andrew Kelleyparentbee7db7