Updating with upstream

.github/FUNDING.yml

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+# https://help.github.com/en/articles/displaying-a-sponsor-button-in-your-repository
+
+open_collective: dlang
+custom: https://dlang.org/foundation/donate.html

changelog/asciicontroltable.dd

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+Added a table of control characters in ASCII table
+
+There is a new enumerated type $(REF ControlChar, std, ascii). It has
+values for every control character in ASCII table and has a base type
+of `char`, allowing for alternative markup of strings with control
+characters:
+-------
+import std.ascii, std.conv;
+with (ControlChar) assert(text("Phobos", us, "Deimos", us, "Tango", rs) == "Phobos\x1FDeimos\x1FTango\x1E");
+-------

changelog/count_processors_via_sched_affinity_on_linux.dd

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+Count processors via sched_getaffinity on Linux
+
+On GNU/Linux usable number of processors may be restricted if a process runs in containers.
+In case it's better to use sched_getaffinity(2).
+-------
+import std.parallelism;
+
+writeln(totalCPUs); // 4
+writeln(totalCPUs); // 1: runs on `taskset -c 0`
+-------

changelog/new_schwartzSort_overload.dd

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+Add overload `std.algorithm.sorting.schwartzSort!(alias transform, SwapStrategy ss, R)`
+
+$(REF schwartzSort, std,algorithm,sorting) now has an overloaded version that can be
+used to provide a `SwapStrategy` without also explicitly specifying the predicate to
+sort by.
+
+-------
+auto s1 = a.schwartzSort!(abs, SwapStrategy.stable);
+
+// The old syntax still works.
+auto s2 = a.schwartzSort!(abs, "a < b", SwapStrategy.stable);
+-------

changelog/phobos-dip1000.dd

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+Phobos is now compiled with -preview=dip1000
+
+Phobos and Druntime are now compiled with -preview=dip1000.
+
+This is a major milestone in the transition to $(LINK2 https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1000.md, DIP1000). Hence, end users can now start using `-preview=dip1000` in their own code bases.
+
+As always, any encountered issue should be reported to the $(LINK2 https://issues.dlang.org, issue tracker).