Update rust/ql/test/query-tests/security/CWE-770/main.rs

Co-authored-by: Geoffrey White <40627776+geoffw0@users.noreply.github.com>

Author: redsun82

rust/ql/test/query-tests/security/CWE-770/main.rs

@@ -199,7 +199,7 @@ unsafe fn test_system_alloc(v: usize) {
 
     let l3 = std::alloc::Layout::array::<u8>(10).unwrap();
     let m3 = std::alloc::System.alloc(l3);
-    let _ = std::alloc::System.realloc(m3, l3, v); // $ Alert[rust/uncontrolled-allocation-size]
+    let _ = std::alloc::System.realloc(m3, l3, v); // $ Alert[rust/uncontrolled-allocation-size]=arg1
 
     let l4 = std::alloc::Layout::array::<u8>(10).unwrap();
     let m4 = std::ptr::NonNull::<u8>::new(std::alloc::alloc(l4)).unwrap();