File 0001-let-systemctl-completion-ignore-at-names.patch of Package systemd

--- systemd-210/shell-completion/bash/systemctl
+++ systemd-210/shell-completion/bash/systemctl	2014-08-20 15:01:04.502736981 +0000
@@ -43,7 +43,7 @@ __filter_units_by_property () {
         local units=("$@")
         local props
         IFS=$'\n' read -rd '' -a props < \
-            <(__systemctl $mode show --property "$property" -- "${units[@]}")
+            <(__systemctl $mode show --property "$property" -- "${units[@]}" 2> /dev/null)
         for ((i=0; $i < ${#units[*]}; i++)); do
                 if [[ "${props[i]}" = "$property=$value" ]]; then
                         echo " ${units[i]}"