reduce returned temp folder path

Author: eeisegn

src/scanoss/delta.py

@@ -159,11 +159,13 @@ def create_delta_dir(self, folder: str, root_dir: str = '.') -> str or None:
             try:
                 self.print_debug(f'Creating temporary delta directory in {root_dir} ...')
                 folder = tempfile.mkdtemp(prefix="delta-", dir=root_dir)
+                if folder:
+                    folder = folder.lstrip(root_dir).lstrip(os.sep)  # Strip the root directory temp folder
                 self.print_debug(f'Created temporary delta directory: {folder}')
             except (OSError, IOError) as e:
                 self.print_stderr(f'ERROR: Failed to create temporary directory in {root_dir}: {e}')
                 return None
-        return os.path.normpath(folder)
+        return folder
 
     def load_input_file(self, input_file: str) -> list[str] or None:
         """