Note about Manifest Header Names starting with "From"

[Florian Weimer]

* Philipp Kunz:

> Hi,
>
> The Jar File Specification [1] states that,
>
>> Note: To prevent mangling of files sent via straight e-mail,
>> no header will start with the four letters "From".
>
> But I can't see that this is actually the case.

I think the problem are the five bytes "From " at the start of a line,
not just "From".

From-Field or something like that should indeed be fine.