openat: move fstatat and unlinkat into correct files Code motion, should be no semantic changes. * m4/openat.m4 (gl_FUNC_OPENAT): Adjust which files will be compiled. * lib/openat.c (fstatat, unlinkat): Move... * lib/fstatat.c (fstatat): ...into correct files. * lib/unlinkat.c (unlinkat): Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>