Remove excess whitespace from code snippet

Greenheart · Greenheart · commit 14ff6ed9f3ac · 2026-01-19T18:33:12.000+01:00
diff --git a/src/tutorial/testing.md b/src/tutorial/testing.md
@@ -472,7 +472,7 @@ at the end of the function,
 the actual temporary file will automatically get deleted.
 
 ```rust,ignore
-{{#include testing/tests/cli.rs:17:32}}
+{{#include testing/tests/cli.rs:18:30}}
 ```
 
 <aside class="exercise">
