bash-completion: Don't offer any more completions after help or version.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
bash-completion: Avoid some unnecessary subshells.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
uuidd.8: Document --debug and --quiet long options.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Spelling fixes.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
bash-completion: Don't offer short options where corresponding long one exists.

Users who know the short options can just hit the short option instead
of tab, and it's not likely that it would be helpful to present a list
of single character options to users who don't know them, doing so
just unnecessarily trashes the list of suggestions.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
bash-completion: Symlink runuser symlink to su so it gets loaded on demand.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>

[kzak@redhat.com: - use '-runuser' in the install hook
		  - use the hook only if runuser is enabled]