Update cpp/ql/src/Security/CWE/CWE-416/UseOfUniquePointerAfterLifetimeEnds.ql

Co-authored-by: Felicity Chapman <felicitymay@github.com>

Author: MathiasVP

cpp/ql/src/Security/CWE/CWE-416/UseOfUniquePointerAfterLifetimeEnds.ql

@@ -1,6 +1,6 @@
 /**
  * @name Use of unique pointer after lifetime ends
- * @description If a reference to the contents of a unique pointer outlives the underlying object it may lead to unexpected behavior.
+ * @description Referencing the contents of a unique pointer after the underlying object has expired may lead to unexpected behavior.
  * @kind problem
  * @precision high
  * @id cpp/use-of-unique-pointer-after-lifetime-ends