historic syntax for loop body

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The manpage still documents support for the historic almquist for-loop
syntax, "do and done may be replaced with { and }".  But it's not
implemented anymore.

I'm curious: when has it been removed?
(I can't see it in the changelogs, and it seems to have gone between
ash-0.3.8 and some earlier dash-0.4.x)

Why am I asking?  I was just curious and I stumbled over this because
AFAIK dash is the only ash variant (well, except busybox) which has it
removed; I guess simply due to POSIX, and because it had been everything
but common usage anyway.

Sven
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