fails when having empty or no ports: item for network_bridge_interfaces

[hvisage]

When I want to create a bridge interface, with no other port attached to it, this role fails with the follwoing error conditions:

• ports: [] #ie. empty list
  It creates the line for bridgeprots, but since it's an empty list, the ifup command fails/complains about that empty line
• no ports: lineitme
  The ansible role itself throws an error at the end stating "no ports: item found traversing items.

The work around is to add a dummy0 interface... not the right/nice way if I want to make multiple vmbr's

[aries1980]

I can confirm this issue.