[Issue 19164] malloc may be considered pure when failure results in program exit (no need to reset errno)

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19164

--- Comment #12 from Nathan S. <n8sh.secondary at hotmail.com> ---
Improvement PR: https://github.com/dlang/phobos/pull/6774

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