V595 The 'ustrFile' pointer was utilized before it was verified against nullptr.
     Check lines: 83, 107.

Change-Id: I874983508fb805b1f0a55b3a5b6d4d78ae1babdb
Reviewed-on: https://gerrit.libreoffice.org/71472
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>