refactor

src/providers/sia/sia_provider.cpp

@@ -322,11 +322,12 @@ auto sia_provider::get_directory_items(const std::string &api_path,
     return api_error::error;
   }
 
-  std::sort(list.begin(), list.end(), [](const auto &a, const auto &b) -> bool {
-    return (a.directory && not b.directory) ||
-           (not(b.directory && not a.directory) &&
-            (a.api_path.compare(b.api_path) < 0));
-  });
+  std::sort(list.begin(), list.end(),
+            [](const auto &item1, const auto &item2) -> bool {
+              return (item1.directory && not item2.directory) ||
+                     (not(item2.directory && not item1.directory) &&
+                      (item1.api_path.compare(item2.api_path) < 0));
+            });
 
   list.insert(list.begin(), directory_item{
                                 "..",