Fixed QA for replace-disks
Fixed QA for replace-disks

Bug introduced in commit cc4b14f07: Part of a statement was missing. This
makes pylint-qa fail.

Signed-off-by: Bernardo Dal Seno <dcdd79c5479cb9d1329ec01d126f02cb045aa103@google.com>
Reviewed-by: Michael Hanselmann <68b67885ff74281219b4a4be33cc20fd45078d7c@google.com>

mbakke/ganeti,ganeti/ganeti,apyrgio/ganeti,dimara/ganeti,ganeti-github-testing/ganeti-test-1,ganeti-github-testing/ganeti-test-1,apyrgio/snf-ganeti,grnet/snf-ganeti,bitemyapp/ganeti,mbakke/ganeti,andir/ganeti,leshchevds/ganeti,ganeti/ganeti,onponomarev/ganeti,ganeti/ganeti,andir/ganeti,mbakke/ganeti,yiannist/ganeti,dimara/ganeti,leshchevds/ganeti,yiannist/ganeti,bitemyapp/ganeti,apyrgio/ganeti,grnet/snf-ganeti,onponomarev/ganeti,leshchevds/ganeti,andir/ganeti,apyrgio/snf-ganeti,yiannist/ganeti