autotest/virt-test — pull request #1515 by xutian (2014-03-16 07:54:28+00:00)
Title: virttest.env_process: move close serial_console session step

move close serial_console session in the end of postprocess as it'll help
keeping the number of filedescriptors used by virt test.

Signed-off-by: Xu Tian