style(shell-completion): remove unnecessary backslashes

shell-completion/bash/systemd-analyze

@@ -28,18 +28,18 @@ __contains_word () {
 
 __get_machines() {
     local a b
-    { machinectl list --full --max-addresses=0 --no-legend --no-pager 2>/dev/null; echo ".host"; } | \
-        { while read a b; do echo " $a"; done; } | \
+    { machinectl list --full --max-addresses=0 --no-legend --no-pager 2>/dev/null; echo ".host"; } |
+        { while read a b; do echo " $a"; done; } |
         sort -u
 }
 
 __get_units_all() {
-    systemctl list-units --no-legend --no-pager --plain --all $1 | \
+    systemctl list-units --no-legend --no-pager --plain --all $1 |
         { while read -r a b c; do echo " $a"; done; }
 }
 
 __get_services() {
-    systemctl list-units --no-legend --no-pager --plain -t service --all $1 | \
+    systemctl list-units --no-legend --no-pager --plain -t service --all $1 |
         { while read -r a b c; do [[ $b == "loaded" ]]; echo " $a"; done; }
 }