Export of internal Abseil changes

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9f746b79e16d36dba908ed9e2a586d890fe54acc by Derek Mauro <dmauro@google.com>:

Remove the Bazel mirror URL that we use in our WORKSPACE file

This doesn't appear to be supported. We use --distdir caching in our tests.

PiperOrigin-RevId: 327634738

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e1f6f54830c415fc8bb8dc14483fae4cf9713d75 by Abseil Team <absl-team@google.com>:

Removing comments following license() rules as they are rarely useful, redundant with LICENSE files, and tend to fall out of date.

PiperOrigin-RevId: 327504063

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b59c076638a57a74a3f8475f1dee8b536e32a15f by Gennadiy Rozental <rogeeff@google.com>:

Change GetAllFlags API to return a collection of mutable flag handles.

This will make this interface on par with FindCommandLineFlag and allow to call
CommandLineFlag::ParseFrom on the handle returned by GetAllFlags.
PiperOrigin-RevId: 327499084

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bbf56b3c4a1d908d95e5a52aba38b1984151efff by Gennadiy Rozental <rogeeff@google.com>:

Make raw_hash_set compile when AllocTraits::propagate_on_container_swap is false.

PiperOrigin-RevId: 327371107

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837f62c85ea65c1d6b847a75816198c625fe62ff by Abseil Team <absl-team@google.com>:

On macOS, `mem_alloc` is defined like this:

rpc/types.h:86:#define mem_alloc(bsize)	calloc(1, bsize)

So if that file is included before container_memory.h, the variable mem_alloc
may never get defined. This is fixed by using a different name.

PiperOrigin-RevId: 327360224

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aa8f5528382c0d01239ce75b645723aaf7e1ef46 by Gennadiy Rozental <rogeeff@google.com>:

Release of absl::GetAllFlags API.

PiperOrigin-RevId: 327275943
GitOrigin-RevId: 9f746b79e16d36dba908ed9e2a586d890fe54acc
Change-Id: I99c5c87dd1712bf8df9a52397b0c1e400a3c3447
diff --git a/absl/algorithm/BUILD.bazel b/absl/algorithm/BUILD.bazel
index 229cd71..a3002b7 100644
--- a/absl/algorithm/BUILD.bazel
+++ b/absl/algorithm/BUILD.bazel
@@ -24,7 +24,7 @@
 
 package(default_visibility = ["//visibility:public"])
 
-licenses(["notice"])  # Apache 2.0
+licenses(["notice"])
 
 cc_library(
     name = "algorithm",