This addresses some of cppcheck's "redundantAssignment" warnings
("Variable '<varName>' is reassigned a value before the old one
has been used").

Change-Id: I8fd2950d5aa1a3f4bd9e1c4c336abe465d1f657e
Reviewed-on: https://gerrit.libreoffice.org/17926Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>