file index path padding is only needed on disk
diff --git a/lib/got_file_index_priv.h b/lib/got_file_index_priv.h
index 84aa5d3..a43599e 100644
--- a/lib/got_file_index_priv.h
+++ b/lib/got_file_index_priv.h
@@ -49,7 +49,7 @@ struct got_file_index_entry {
/*
* UNIX-style path, relative to work tree root.
- * Variable length and NUL-padded to a multiple of 8.
+ * Variable length, and NUL-padded to a multiple of 8 on disk.
*/
const char *path;
};