[rancid] Adding JunOS Commands

[Heasley]

Sun, Nov 08, 2015 at 07:19:25PM +0000, Baird, Josh:
> Ok - getting much further now.  But, it seems that my new command is failing to run.  I tried adding other commands as well:
> 
> switch.something.com: missed cmd(s): show configuration | display omit
> 
> I'm able to use jlogin to login to the device and manually execute the command(s) with no problem.

export NOPIPE=YES
rancid -t type -d host

will leave a host.raw file to help debug, such as seeing why the cmd is not
working.