[erlang-questions] file:open(File, [ram])

[JD Bothma]

The 'ram' option to file:open/2 seems to implement some functionality I
want: to treat a file in memory as if it's a file on disk to let a library
support both disk and in-memory data concisely.

It doesn't look like this option is documented, but it's probably useful to
many. It looks like it's used by at least erl_tar.

Can this become part of the documented API of the file module?

JD
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