fix: adds new line at end of file

Author: elsaminsut

base/src/test/test_cell_info_n_sheets

@@ -32,4 +32,4 @@ fn arguments() {
 
     assert_eq!(model._get_text("A8"), *"1");
     assert_eq!(model._get_text("A9"), *"#N/IMPL!");
-}
+}