Undo accidental change to command line parameter count.
In 85d0e1da, I misinterpreted parameter count as a default value, which broke compatibility with scripts that previously forced frame_parallel off. Also improve documentation of option for consistency with other single parameter options. Change-Id: Iaadb8b8f7a803f249752a32bd8164171299d0582
Showing with 4 additions and 2 deletions