bug#38492: 27.0.50; Warn pdumper users when pure space has been overflowed

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
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With portable dumping. I think pure space provides no benefit.
So it would be fine to turn off use of it in that case.

But I think it would be a mistake to delete the code for pure space
until we are sure that everything other than portable dumpimng is
obsolete.

-- 
Dr Richard Stallman
Founder, Free Software Foundation (https://gnu.org, https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)