fix lintrunner

ghstack-source-id: 9adcb8f
ghstack-comment-id: 2654710342
Pull Request resolved: #8426

Author: swolchok

backends/cadence/aot/export_example.py

@@ -6,7 +6,7 @@
 
 # Example script for exporting simple models to flatbuffer
 
-#pyre-unsafe
+# pyre-unsafe
 
 import logging
 import tempfile