refactor(rsync): prefix sed with command

Author: yedayak

completions/rsync

@@ -102,7 +102,8 @@ _comp_cmd_rsync()
                 fi
             done
             if [[ $shell == ssh ]]; then
-                local rsync_version=$("$1" --version 2>/dev/null | sed -n '1s/.*rsync *version \([0-9.]*\).*/\1/p')
+                local rsync_version=$("$1" --version 2>/dev/null |
+                    command sed -n '1s/.*rsync *version \([0-9.]*\).*/\1/p')
                 _comp_cmd_rsync__vercomp "$rsync_version" "3.2.4"
                 if (($? == 2)); then
                     _comp_compgen -x scp remote_files