the header is already ParameterSubstitution.hxx...

Change-Id: I13239681fbdee6d79aae67f7b7291fe5f7ee78ee
Reviewed-on: https://gerrit.libreoffice.org/54333Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Rene Engelhard <rene@debian.org>