[PATCH] KVM-test: kvm.py: Code style fix

[Marc Enthus <cxzdes@gmail.com>]

From: Marc Enthus <cxzdes@gmail.com>

According to autotest coding style
and http://www.python.org/dev/peps/pep-0008/

use
	if pa_type is not None:
instead of
	if pa_type:

Signed-off-by: Marc Enthus <cxzdes@gmail.com>
---
 client/tests/kvm/kvm_vm.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/client/tests/kvm/kvm_vm.py b/client/tests/kvm/kvm_vm.py
index f3ce4d6..0080b15 100755
--- a/client/tests/kvm/kvm_vm.py
+++ b/client/tests/kvm/kvm_vm.py
@@ -516,7 +516,7 @@ class VM:
                                   pa_type)
                     return False
 
-            elif pa_type and pa_type != "no":
+            elif pa_type is not None and pa_type != "no":
                 logging.warn("Unsupported pci_assignable type: %s", pa_type)
 
             # Make qemu command