Merge pull request #340 from knight42/utmp

libc-test/build.rs

src/unix/bsd/openbsdlike/openbsd.rs

src/unix/notbsd/android/b32.rs

src/unix/notbsd/android/b64.rs

src/unix/notbsd/android/mod.rs

src/unix/notbsd/linux/other/b32/mod.rs