su: remove '+' from getopt_long()

 # /bin/su - -c 'echo test'
 su: user -c does not exist

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=950495
Signed-off-by: Karel Zak <kzak@redhat.com>
lscpu: add Model name

Signed-off-by: Karel Zak <kzak@redhat.com>
bash-completion: add swapoff

[kzak@redhat.com: remove short options]

Signed-off-by: Bernhard Voelker <mail@bernhard-voelker.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
libblkid: fix ZFS superblok offset for SBMAGIC

 # wipefs /dev/sdd1

 offset               type
 ----------------------------------------------------------------
 0x65000              zfs_member   [raid]
                      LABEL: zm1
                      UUID:  18067835215330778964

 and "wipefs -o 0x65000 /dev/sdd1" seems to run in an endless loop.

Reported-by: Helmut Hullen <Hullen@t-online.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
tests: update lscpu tests

Signed-off-by: Karel Zak <kzak@redhat.com>
lib/xalloc: add xstrndup()

Signed-off-by: Karel Zak <kzak@redhat.com>
libblkid: remove duplicate includes

Signed-off-by: Karel Zak <kzak@redhat.com>
tests: make line(1) optional

Signed-off-by: Karel Zak <kzak@redhat.com>
blkid: use xalloc everywhere

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

Signed-off-by: Karel Zak <kzak@redhat.com>
docs: update AUTHORS file

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: add --disable-cytune

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: add --disable-bfs

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: add --disable-hwclock

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: add --disable-fdformat

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: make wall optional in bash-completion

Signed-off-by: Karel Zak <kzak@redhat.com>
docs: update v2.23-ReleaseNotes

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: release++ (v2.23-rc2)

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