xwm: debug print deleted property name

Use wm_log_continue() to avoid printing the timestamp in the middle of a
message.

Print the name of the property that got deleted.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
1 file changed