[PATCH] The pipe to a tail and then head -1 can fail due to a, pipefail., https://stackoverflow.com/questions/22464786/ignoring-bash-pipefail-for-error-code-141, Since sed is used elsewhere in the script, using sed seems simpler and more, performant.

[Dacoda Strack]

> Finding the bug and fixing it... maybe 1 hour.
>
> Figuring out how to contribute my work upstream... maybe 4 hours...

Hahahahaha! Alas... Such truth, and not just for this but for many projects