'nova-manage config convert' broken

Just tried this:

  $ sudo nova-manage config convert --infile=/etc/nova/nova.conf --outfile=/etc/nova/nova.conf.converted
  Possible wrong number of arguments supplied
  Converts a flagfile and prints results to stdout.
  Usage: nova-manage config convert <args> [options]

  Options:
    -h, --help show this help message and exit
    --infile=<path> old-style flagfile to convert to config
    --outfile=<path> path for output file. Writes configto stdout if not
                      specified.
  2012-03-26 09:50:26 CRITICAL nova [-] convert() got an unexpected keyword argument 'file_path'
  (nova): TRACE: Traceback (most recent call last):
  (nova): TRACE: File "/usr/bin/nova-manage", line 1732, in <module>
  (nova): TRACE: main()
  (nova): TRACE: File "/usr/bin/nova-manage", line 1719, in main
  (nova): TRACE: fn(*fn_args, **fn_kwargs)
  (nova): TRACE: TypeError: convert() got an unexpected keyword argument 'file_path'
  (nova): TRACE:
  $ sudo nova-manage config convert --infile=/etc/nova/nova.conf --outfile=/etc/nova/nova.conf.converted