tdf#107823: missing buttons in Presentation Minimizer

Regression from https://cgit.freedesktop.org/libreoffice/core/commit/?id=5d0e485e827057eee9fb2c997685690b710e7f34

Change-Id: I1864e7f7ac73fc13af82237f4f7d4dbaaa5733f5
Reviewed-on: https://gerrit.libreoffice.org/37584Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

sdext/source/minimizer/optimizerdialogcontrols.cxx

@@ -105,7 +105,7 @@ OUString InsertButton( OptimizerDialog& rOptimizerDialog, const OUString& rContr
         Any( rOptimizerDialog.getString( nResID ) ),
         Any( nXPos ),
         Any( nYPos ),
-        Any( nPushButtonType ),
+        Any( static_cast< sal_Int16 >(nPushButtonType) ),
         Any( (sal_Int16)0 ),
         Any( nTabIndex ),
         Any( nWidth ) };