Code review comment for lp:~mwhudson/lava-scheduler/binary-goop-in-job-file-bug-918954

Looks good, eventually we'll want to handle binary goops a bit better. The reason they are there are two fold:

1) We get genuine trash over the serial line
2) We see terminal command codes

I have a skunk project to use the latter better (related to lava-serial)