Export of internal Abseil changes.
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28b634d3e8e879546e20006b81086a2b02390f1d by Abseil Team <absl-team@google.com>:

Indicate Solaris / Illumos has mmap support
https://github.com/abseil/abseil-cpp/pull/139
This change is **untested** as Abseil does not officially support Solaris/Illumos.

PiperOrigin-RevId: 205094615

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3c4cc80abcd91c6cd88209a61b50936d1c498bac by Xiaoyi Zhang <zhangxy@google.com>:

Make is_trivially_copy_assignable work with reference types.

PiperOrigin-RevId: 204982099

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98c6658b3d6cd5eddba9f498747dc84c172ffe05 by Abseil Team <absl-team@google.com>:

Fix typo in comments for c_mismatch.

PiperOrigin-RevId: 204962537

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deef8b23585f7831d67c1d4b1c9ef7f3e30d9028 by Matt Kulukundis <kfm@google.com>:

Internal change

PiperOrigin-RevId: 204956873
GitOrigin-RevId: 28b634d3e8e879546e20006b81086a2b02390f1d
Change-Id: I1da029f8cb83d83ee5a05f3b0c6a07bc3dd5368e
diff --git a/absl/algorithm/container.h b/absl/algorithm/container.h
index acddec4..6af8c09 100644
--- a/absl/algorithm/container.h
+++ b/absl/algorithm/container.h
@@ -314,7 +314,7 @@
 
 // c_mismatch()
 //
-// Container-based version of the <algorithm> `std::mismatchf()` function to
+// Container-based version of the <algorithm> `std::mismatch()` function to
 // return the first element where two ordered containers differ.
 template <typename C1, typename C2>
 container_algorithm_internal::ContainerIterPairType<C1, C2>