スレッドの終了を待ってからテストのメインスレッドが終了するように

git-svn-id: file:///Volumes/Transfer/gigaleak_20231201/2020-05-23%20-%20ctr.7z%20+%20svn_v1.068.zip/ctr/svn/ctr_Repair@230 385bec56-5757-e545-9c3a-d8741f4650f1

trunk/ConsoleDataMigration/sources/tests/ConsoleBackup/Exporter/test_Exporter.cpp

@@ -97,6 +97,12 @@ void ExporterTest::WriteTwlTitleData()
 {
     NN_LOG("WriteTwlTitleData\n");
     ConsoleBackup::ExportTwlTitleList();
+
+    while (!ConsoleBackup::IsExportFinished())
+    {
+        nn::os::Thread::Sleep(nn::fnd::TimeSpan::FromMilliSeconds(10));
+    }
+    ConsoleBackup::FinalizeExportThread();
 }