Updates in bash autocompletions

Hi,

I did ./check-undocumented.sh -b (my script just submitted) and checked
the results.

Cheers.

shell-completion/bash/localectl

@@ -34,7 +34,7 @@ _localectl() {
         local i verb comps locale_vals
         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
         local OPTS='-h --help --version --no-convert --no-pager --no-ask-password
-                    -H --host'
+                    -H --host --machine'
 
         if __contains_word "$prev" $OPTS; then
                 case $prev in