fix windows build

after my commit 60e78fbb806bb "fdo#82577: Handle Font"

Author: Noel Grandin <noel@peralex.com>
Date:   Tue Sep 16 10:09:58 2014 +0200

    fdo#82577: Handle Font
be ignored, and an empty message aborts the commit.

Change-Id: Id87e9ac86b457962fa156fdb1607dfe779b8564d