Export of internal Abseil changes

--
d447fdcb801036cf08197eece193a5a706661120 by Gennadiy Rozental <rogeeff@google.com>:

Eliminate the need for static function holding help message. This decreases the cost of ABSL_FLAG abstraction by 120 bytes under clang.

PiperOrigin-RevId: 281107806

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0aa6b91189f0e8b2381438c33465673a7ae02487 by Derek Mauro <dmauro@google.com>:

Disable the weak symbol CCTZ extension in the time test_util
on MinGW, which does not support it.

PiperOrigin-RevId: 280719769

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67322c41c3e776eb541de90fa4526bdb49422eb6 by Abseil Team <absl-team@google.com>:

Tune PeriodicSampler implementation (for internal-use only)

PiperOrigin-RevId: 280708943

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3a48c346340c7ed03816645cd327e1ff07729aa4 by Abseil Team <absl-team@google.com>:

Clean up public headers not to have warnings for "-Wcomma"

PiperOrigin-RevId: 280695373

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981acd1ef3b13a83a84f04f11c8931f4ed4451c9 by Matthew Brown <matthewbr@google.com>:

Release absl::int128.

PiperOrigin-RevId: 280690817

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d30fae9d2ec30b81322d2eb5afe7e13e45b4b422 by Derek Mauro <dmauro@google.com>:

Fix -Wundef warnings in random platform detection

PiperOrigin-RevId: 280669598
GitOrigin-RevId: d447fdcb801036cf08197eece193a5a706661120
Change-Id: Ie5e10e567c54b7de211833607689f233d4ddf734

1 files changed, 3 insertions, 3 deletions

diff --git a/absl/flags/internal/registry.cc b/absl/flags/internal/registry.cc
index ae7671a967e8..52d9f3c716f3 100644
--- a/absl/flags/internal/registry.cc
+++ b/absl/flags/internal/registry.cc
@@ -276,9 +276,8 @@ namespace {
 class RetiredFlagObj final : public flags_internal::CommandLineFlag {
  public:
   constexpr RetiredFlagObj(const char* name, FlagOpFn ops)
-      : flags_internal::CommandLineFlag(
-            name, flags_internal::HelpText::FromStaticCString(nullptr),
-            /*filename=*/"RETIRED"),
+      : flags_internal::CommandLineFlag(name,
+                                        /*filename=*/"RETIRED"),
         op_(ops) {}
 
  private:
@@ -288,6 +287,7 @@ class RetiredFlagObj final : public flags_internal::CommandLineFlag {
   }
 
   flags_internal::FlagOpFn TypeId() const override { return op_; }
+  std::string Help() const override { return ""; }
   bool IsRetired() const override { return true; }
   bool IsModified() const override { return false; }
   bool IsSpecifiedOnCommandLine() const override { return false; }