add .dbus to Linux exclude

comp-backup.sh

@@ -77,7 +77,8 @@ elif [ $HOST_OS = 'Linux' ]; then
         NOTIFY0='notify-send "Backup done"'
         NOTIFY1='notify-send "Backup did not complete"'
     fi
-    pexcl=($H/Videos)
+    pexcl=($H/Videos
+    	   $H/.dbus)
     # SYSTEMD
     $(which systemctl &>/dev/null)
     if [ $? -ne 0 ]; then