blkid: use xalloc.h when possible

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
docs: arch is gone, use delpart as usage() function example

The arch.c was removed in commit 27abd809.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
sulogin: couple of obvious fixes for non-linux systems

Signed-off-by: Karel Zak <kzak@redhat.com>
rtcwake: add --adjfile command line option

 ... for better compatibility with hwclock.

Signed-off-by: Karel Zak <kzak@redhat.com>
include/pathnames: rename _PATH_ADJPATH to _PATH_ADJTIME

Signed-off-by: Karel Zak <kzak@redhat.com>