shell-completion: use 4 space indentation too

The same as in other places, indentation levels were all over the place.

shell-completion/bash/hostnamectl

@@ -19,47 +19,47 @@
 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
 __contains_word () {
-        local w word=$1; shift
-        for w in "$@"; do
-                [[ $w = "$word" ]] && return
-        done
+    local w word=$1; shift
+    for w in "$@"; do
+        [[ $w = "$word" ]] && return
+    done
 }
 
 _hostnamectl() {
-        local i verb comps
-        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
-        local OPTS='-h --help --version --transient --static --pretty
-                    --no-ask-password -H --host -M --machine'
+    local i verb comps
+    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+    local OPTS='-h --help --version --transient --static --pretty
+                --no-ask-password -H --host -M --machine'
 
-        if [[ $cur = -* ]]; then
-                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
-                return 0
-        fi
-
-        local -A VERBS=(
-                [STANDALONE]='status'
-                     [ICONS]='set-icon-name'
-                      [NAME]='set-hostname set-deployment set-location'
-                   [CHASSIS]='set-chassis'
-        )
-
-        for ((i=0; i < COMP_CWORD; i++)); do
-                if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
-                        verb=${COMP_WORDS[i]}
-                        break
-                fi
-        done
-
-        if [[ -z $verb ]]; then
-                comps=${VERBS[*]}
-        elif __contains_word "$verb" ${VERBS[CHASSIS]}; then
-                comps='desktop laptop convertible server tablet handset watch embedded vm container'
-        elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[ICONS]} ${VERBS[NAME]}; then
-                comps=''
-        fi
-
-        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+    if [[ $cur = -* ]]; then
+        COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
         return 0
+    fi
+
+    local -A VERBS=(
+        [STANDALONE]='status'
+        [ICONS]='set-icon-name'
+        [NAME]='set-hostname set-deployment set-location'
+        [CHASSIS]='set-chassis'
+    )
+
+    for ((i=0; i < COMP_CWORD; i++)); do
+        if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
+            verb=${COMP_WORDS[i]}
+            break
+        fi
+    done
+
+    if [[ -z $verb ]]; then
+        comps=${VERBS[*]}
+    elif __contains_word "$verb" ${VERBS[CHASSIS]}; then
+        comps='desktop laptop convertible server tablet handset watch embedded vm container'
+    elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[ICONS]} ${VERBS[NAME]}; then
+        comps=''
+    fi
+
+    COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+    return 0
 }
 
 complete -F _hostnamectl hostnamectl