Tripleo-Heat-Template, example for NeutronSriovNumVFs causes parsing error

As per the file - puppet/services/neutron-sriov-agent.yaml

 40 NeutronSriovNumVFs:
 41 description: >
 42 Provide the list of VFs to be reserved for each SR-IOV interface.
 43 Format "<interface_name1>:<numvfs1>","<interface_name2>:<numvfs2>"
 44 Example "eth1:4096","eth2:128"
 45 type: comma_delimited_list
 46 default: ""

However if we give a parameter as - "eth1:4096","eth2:128" - it throws a parse error as below -

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/osc_lib/shell.py", line 135, in run
    ret_val = super(OpenStackShell, self).run(argv)
  File "/usr/lib/python2.7/site-packages/cliff/app.py", line 267, in run
    result = self.run_subcommand(remainder)
  File "/usr/lib/python2.7/site-packages/osc_lib/shell.py", line 180, in run_subcommand
    ret_value = super(OpenStackShell, self).run_subcommand(argv)
  File "/usr/lib/python2.7/site-packages/cliff/app.py", line 387, in run_subcommand
    result = cmd.run(parsed_args)
  File "/usr/lib/python2.7/site-packages/osc_lib/command/command.py", line 41, in run
    return super(Command, self).run(parsed_args)
  File "/usr/lib/python2.7/site-packages/cliff/command.py", line 59, in run
    return self.take_action(parsed_args) or 0
  File "/usr/lib/python2.7/site-packages/tripleoclient/v1/overcloud_deploy.py", line 1192, in take_action
    self._deploy_tripleo_heat_templates_tmpdir(stack, parsed_args)
  File "/usr/lib/python2.7/site-packages/tripleoclient/v1/overcloud_deploy.py", line 412, in _deploy_tripleo_heat_templates_tmpdir
    new_tht_root, tht_root)
  File "/usr/lib/python2.7/site-packages/tripleoclient/v1/overcloud_deploy.py", line 478, in _deploy_tripleo_heat_templates
    cleanup=not parsed_args.no_cleanup)
  File "/usr/lib/python2.7/site-packages/tripleoclient/v1/overcloud_deploy.py", line 171, in _process_multiple_environments
    env_path=env_path)
  File "/usr/lib/python2.7/site-packages/heatclient/common/template_utils.py", line 303, in process_environment_and_files
    env = environment_format.parse(raw_env)
  File "/usr/lib/python2.7/site-packages/heatclient/common/environment_format.py", line 45, in parse
    raise ValueError(yea)
ValueError: while parsing a block mapping
  in "<string>", line 46, column 3:
      InternalApiNetCidr: 10.10.125.0/24
      ^
expected <block end>, but found ','
  in "<string>", line 87, column 46:
     ... icalDevMappings: "eth1:4096","eth2:128"

--

The resolution is to pass the parameter as "eth1:4096,eth2:128"