Merge branch 'master' into sysinfo

src/unix/bsd/apple/mod.rs

src/unix/bsd/freebsdlike/dragonfly/mod.rs

src/unix/bsd/freebsdlike/freebsd/mod.rs

src/unix/bsd/freebsdlike/mod.rs

src/unix/bsd/mod.rs

src/unix/bsd/openbsdlike/bitrig.rs

src/unix/bsd/openbsdlike/mod.rs

src/unix/bsd/openbsdlike/netbsd.rs

src/unix/bsd/openbsdlike/openbsd.rs

src/unix/notbsd/linux/mips.rs

src/unix/notbsd/linux/mod.rs

src/unix/notbsd/linux/musl/b32/x86.rs

src/unix/notbsd/linux/musl/b64/mod.rs

src/unix/notbsd/linux/musl/mod.rs

src/unix/notbsd/linux/other/mod.rs