sosreport displays traceback with brName in self.get_bridge_name

Issue

When generating a sosreport on RHEL 6.2, it completes and generates the following traceback:

Press ENTER to continue, or CTRL-C to quit.

Please enter your first initial and last name []:
Please enter the case number that you are generating this report for: 0000000

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/sos/sosreport.py", line 700, in sosreport
    plug.setup()
  File "/usr/lib/python2.6/site-packages/sos/plugins/networking.py", line 98, in setup
    for brName in self.get_bridge_name(brctlFile):
ValueError: need more than 1 value to unpack
  Running plugins. Please wait ...

  Completed [61/61] ...      
Creating compressed archive...