KVM test: kvm_subprocess.py: do not start tail thread by default

Start the tail thread only if the user specifies a non-None output_func or
termination_func.

Signed-off-by: Michael Goldish <mgoldish@redhat.com>


git-svn-id: http://test.kernel.org/svn/autotest/trunk@3845 592f7852-d20e-0410-864c-8624ca9c26a4
1 file changed