Kernel prepatch 5.0-rc8

Anybody expecting the 5.0 kernel to come out today will have been
disappointed; Linus released 5.0-rc8
instead. 'This may be totally unnecessary, but we actually had more
patches come in this last week than we had for rc7, which just didn't make
me feel the warm and fuzzies. And while none of the patches looked all that
scary, some of them were to pretty core files, so it wasn't all just random
rare drivers (although those kinds also existed).'