Added log entry for container in ContainerSubtraction

Refs #13649

Code/Mantid/MantidQt/CustomInterfaces/src/Indirect/ContainerSubtraction.cpp

@@ -263,6 +263,16 @@ void ContainerSubtraction::absCorComplete(bool error) {
   if (save)
     addSaveWorkspaceToQueue(QString::fromStdString(m_pythonExportWsName));
 
+  IAlgorithm_sptr addLog =
+      AlgorithmManager::Instance().create("AddSampleLog");
+  addLog->initialize();
+  addLog->setProperty("Workspace", m_uiForm.dsSample->getCurrentDataName().toStdString());
+  addLog->setProperty("LogName", "container");
+  addLog->setProperty("LogText", m_uiForm.dsContainer->getCurrentDataName().toStdString());
+  addLog->setProperty("LogType", "String");
+  m_batchAlgoRunner->addAlgorithm(addLog);
+
+
   // Run algorithm queue
   connect(m_batchAlgoRunner, SIGNAL(batchComplete(bool)), this,
           SLOT(postProcessComplete(bool)));