Merge branch 'CTest-crash-missing-glob' into release-3.9

Merge-request: !1289

Source/CTest/cmCTestCoverageHandler.cxx

@@ -570,6 +570,8 @@ int cmCTestCoverageHandler::ProcessHandler()
       ostr << "Cannot open source file: " << fullPath;
       errorsWhileAccumulating.push_back(ostr.str());
       error++;
+      covLogXML.EndElement(); // Report
+      covLogXML.EndElement(); // File
       continue;
     }
     int untested = 0;