spelling: fix typo "outsite" -> "outside" in compileall.py

Summary:
Fixed typo in CLI help text for the `-e`/`--limit_sl_dest` argument.
"outsite" should be "outside".

Reviewed By: yoney

Differential Revision: D97805944

fbshipit-source-id: d3521d0bdbb5f1704ad8f88c54aafde264a54141

Author: alexmalyshev

cinderx/PythonLib/cinderx/compileall.py

@@ -559,7 +559,7 @@ def main() -> bool:
         "-e",
         metavar="DIR",
         dest="limit_sl_dest",
-        help="Ignore symlinks pointing outsite of the DIR",
+        help="Ignore symlinks pointing outside of the DIR",
     )
     parser.add_argument(
         "--hardlink-dupes",