DependencyScan: Fix a missing argument in a struct init.

Author: tshortli

lib/DependencyScan/DependencyScanningTool.cpp

@@ -229,6 +229,7 @@ static swiftscan_dependency_graph_t generateHollowDiagnosticOutput(
                                           c_string_utils::create_null(),
                                           c_string_utils::create_null(),
                                           nullptr,
+                                          c_string_utils::create_null(),
                                           c_string_utils::create_null()};
   hollowMainModuleInfo->details = hollowDetails;