Merge pull request #1 from guibsonmoura/hotfix/download-file

fix issue odwyersoftware#27

src/mega/mega.py

@@ -748,6 +748,7 @@ def _download_file(self,
                     file_mac[2] ^ file_mac[3]) != meta_mac:
                 raise ValueError('Mismatched mac')
             output_path = Path(dest_path + file_name)
+            temp_output_file.close()
             shutil.move(temp_output_file.name, output_path)
             return output_path