Include one missing file-name in src/ch11-01-writing-tests.md Listing

src/ch11-01-writing-tests.md

@@ -459,7 +459,7 @@ consider the modified code for `Guess` in Listing 11-9 where the `new` function
 panics with different messages depending on whether the value is too small or
 too large.
 
-<Listing number="11-9" caption="Testing for a `panic!` with a panic message containing a specified substring">
+<Listing number="11-9" file-name="src/lib.rs" caption="Testing for a `panic!` with a panic message containing a specified substring">
 
 ```rust,noplayground
 {{#rustdoc_include ../listings/ch11-writing-automated-tests/listing-11-09/src/lib.rs:here}}