[bugwash] Retire hash_data() from VCL 4.2

[Dridi Boukelmoune]

Hello,

I would like to add the following item to the next bugwash agenda:

> 11:34 < dridi> phk: around?
> 11:35 < dridi> on the topic of vcl 4.2, and considering your recent commits
> 11:36 < dridi> would it make sense to retire the hash_data function in vcl 4.2?
> 11:36 < dridi> replacement would be hash_string, hash_lowercase (host is case-insensitive) and hash_blob (mainly req body)
> 11:37 < dridi> of course hash_data would have to remain for vcl < 4.2
> 11:38 < dridi> but the new functions could be made available in vcl 4.[01] too
> 11:52 < phk> dridi, for a few minutes
> 11:52 < phk> dridi, I think that is bugwash material ?

I would also encourage changing the built-in VCL to use the new
functions in vcl_hash.

Dridi