Skip children when rustfmting in pre-commit

hooks/pre-commit

@@ -93,7 +93,7 @@ for file in $(git diff --name-only --cached);
 do
 	if [ ${file: -3} == ".rs" ]; then
 		HASH=$(shasum < $file)
-		NEW_HASH=$(rustfmt --write-mode=display < $file | shasum)
+		NEW_HASH=$(rustfmt --skip-children --write-mode=display < $file | shasum)
         echo $HASH
         echo $NEW_HASH
 		if [ "${HASH}" != "${NEW_HASH}" ]; then