fix return types

repertory/repertory_test/include/fixtures/drive_fixture.hpp

@@ -209,15 +209,17 @@ protected:
   static void SetUpTestCase() {
     current_directory = std::filesystem::current_path();
 
-    const auto make_test_dir = [](std::string_view suite,
-                                  std::string_view sub) {
-      return utils::path::combine(test::get_test_output_dir(),
-                                  {std::string(suite), std::string(sub)});
+    const auto make_test_dir = [](const std::string &suite,
+                                  const std::string &sub) -> std::string {
+      return utils::path::combine(test::get_test_output_dir(), {
+                                                                   suite,
+                                                                   sub,
+                                                               });
     };
 
     const auto make_cfg_dir = [](const std::string &root,
-                                 std::string_view name) {
-      auto cfg = utils::path::combine(root, {std::string(name)});
+                                 const std::string &name) -> std::string {
+      auto cfg = utils::path::combine(root, {name});
       ASSERT_TRUE(utils::file::directory(cfg).create_directory());
       return cfg;
     };