add missing parameter flag

in dbgutil build gave:
warn:legacy.osl:27022:1:tools/source/rc/resmgr.cxx:701:
file:///build/libo/dev/instdir/program/../program/resource/scen-US.res
Class: 272, Id: 436. Classpointer not at the end!
Resource Stack
Class: 272, Id: 25044

and the following value of the suppress flag was taken in place of the
parameter flag, which was identical and didn't harm in this case, but ...

Change-Id: I951381ef2a5c2d7d7d44892ad5c34ea77ace51ce
(cherry picked from commit c08fea639ca1a757df086ffe34f2bd5cf6573b6c)
Reviewed-on: https://gerrit.libreoffice.org/11058
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>