autotest/virt-test — pull request #1859 by yumingfei (2014-10-28 09:02:13+00:00)
Title: utils_test.libvirt: Fix parameter undefined error.

When iscsi_sessions is [], iscsi_device would be not exist in old codes.
So iscsi_target should be iscsi_device.

Signed-off-by: Yu Mingfei