pPV was for the parameter of MarkGluePoint that was removed
in ec389669, and was kept somehow and is converted
to bool here.  Just replace the default boolean value to false
( that means marking instead of unmarking. )

Change-Id: I4c4b9dd368537b7b90cc4effae482a7b8a41eec9
Reviewed-on: https://gerrit.libreoffice.org/46472Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>