bash-completion: add bash completetion configure option

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: disk-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: fdisks

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: login-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: misc-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: schedutils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: sys-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: term-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: text-utils

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
bash-completion: add completion files to Makefile.am

And remove shell completion TODO item.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
newgrp: use xstrdup to check allocation succeeded

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
agetty: the command does not have -h and -V options

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
dmesg: fix usage() output consistancy

Possible facilities and levels are meant to be printed to same file as
the rest of the usage output.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
fsfreeze: tell user when mandatory option is not specified

This commit also removes use of internal magic values by replacing them
with a enum definition.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
losetup: allow -j option argument to be relative path

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
lscpu: fix error message

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
partx: remove deprecated option from usage()

The fact that -l, --list is deprecated will remain in manual page till
unforeseeable future.  Meanwhile the usage() can be made shorter.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
setterm: fix various color option argument lists

The lists did not have correct colors in usage().  Because the usage()
had to be fixed, it is best to make the output easy for translators to
work with.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
vipw: add usage() function

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
chrt: make command syntax easier to understand in usage()

And mention in manual that the default is referring to the internal
default of this command, not the Linux system default.  Manual page
example also tries to be a little more complete how to use the command.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>