cmd/dist: save one uname(1) execution by query for -m and -v together.
cmd/dist: save one uname(1) execution by query for -m and -v together.

https://go-review.googlesource.com/#/c/2126/9/src/cmd/dist/util.go

minux/goios,minux/goios,minux/goios,minux/goios,minux/goios,minux/goios,minux/goios