Limiting line length to 2K to avoid bufio.Scanner: token too long issues

[cboneti]

Under rare circumstances, the call to ansible-playbook omnia.yaml inside of our startup script will create a line that is longer than the bufio.Scanner limit.

This PR will limit this specific call outputs to 2048 characters to avoid these issues.

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[tpdownes]

It seems to me that tail -c 2048 is more likely to contain actionable information. Do you agree?

Another alternative might be something like:

cmd | split -b2000
for j in x[a-z][a-z]*; do cat $j; done

We do not have to completely over-engineer this hack but I'd rather not lose the information we want in the first place.