Export of internal Abseil changes

--
00c451dc81be7fe05f982b08b4ea1edc2ca2c1c5 by Abseil Team <absl-team@google.com>:

remove a test that is currently broken on emscripten from running on
emscripten.

PiperOrigin-RevId: 262005667

--
9df5f5acb65996bdb99900039a4f01a44811aa14 by CJ Johnson <johnsoncj@google.com>:

Adds a layer of macro-indirection to opening up namespace absl inside a macro. This helps avoid an issue identified with the LTS inline namespaces

PiperOrigin-RevId: 261990937

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5d40aa129cd77a1b853e5389aff7eacffe5c8204 by Gennadiy Rozental <rogeeff@google.com>:

Fix handling of new lines in flag help descriptions.

If there are explicit new lines in a flag help description string,
we respect it and format the usage message accordingly.

PiperOrigin-RevId: 261974244

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4997b5a2ddb983969059470a2d2bc2416b3d785e by CJ Johnson <johnsoncj@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 261955031
GitOrigin-RevId: 00c451dc81be7fe05f982b08b4ea1edc2ca2c1c5
Change-Id: I5a13bfb15bba0f7b6e49c0655c57c3addfeb1c72

1 files changed, 33 insertions, 0 deletions

diff --git a/absl/flags/internal/usage_test.cc b/absl/flags/internal/usage_test.cc
index 5e5f7a84cc43..781e1d2b16ab 100644
--- a/absl/flags/internal/usage_test.cc
+++ b/absl/flags/internal/usage_test.cc
@@ -48,6 +48,14 @@ std::string AbslUnparseFlag(const UDT&) { return "UDT{}"; }
 ABSL_FLAG(UDT, usage_reporting_test_flag_05, {},
           "usage_reporting_test_flag_05 help message");
 
+ABSL_FLAG(
+    std::string, usage_reporting_test_flag_06, {},
+    "usage_reporting_test_flag_06 help message.\n"
+    "\n"
+    "Some more help.\n"
+    "Even more long long long long long long long long long long long long "
+    "help message.");
+
 namespace {
 
 namespace flags = absl::flags_internal;
@@ -173,6 +181,11 @@ TEST_F(UsageReportingTest, TestFlagsHelpHRF) {
       default: 1000000000000004;
     -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
+    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+
+      Some more help.
+      Even more long long long long long long long long long long long long help
+      message.); default: "";
 )";
 
   std::stringstream test_buf_01;
@@ -244,6 +257,11 @@ TEST_F(UsageReportingTest, TestUsageFlag_helpshort) {
       default: 1000000000000004;
     -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
+    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+
+      Some more help.
+      Even more long long long long long long long long long long long long help
+      message.); default: "";
 )");
 }
 
@@ -268,6 +286,11 @@ TEST_F(UsageReportingTest, TestUsageFlag_help) {
       default: 1000000000000004;
     -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
+    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+
+      Some more help.
+      Even more long long long long long long long long long long long long help
+      message.); default: "";
 
 Try --helpfull to get a list of all flags.
 )");
@@ -294,6 +317,11 @@ TEST_F(UsageReportingTest, TestUsageFlag_helppackage) {
       default: 1000000000000004;
     -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
+    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+
+      Some more help.
+      Even more long long long long long long long long long long long long help
+      message.); default: "";
 
 Try --helpfull to get a list of all flags.
 )");
@@ -354,6 +382,11 @@ TEST_F(UsageReportingTest, TestUsageFlag_helpon) {
       default: 1000000000000004;
     -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
+    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+
+      Some more help.
+      Even more long long long long long long long long long long long long help
+      message.); default: "";
 )");
 }