Update shared/dataflow/codeql/dataflow/DataFlow.qll

Co-authored-by: Owen Mansel-Chan <62447351+owen-mc@users.noreply.github.com>

shared/dataflow/codeql/dataflow/DataFlow.qll

@@ -40,7 +40,7 @@ signature module InputSig {
 
   /**
    * A node in the data flow graph representing the value of an argument after
-   * a function call returns. For example, consider the following C++ code:
+   * an operation that might have changed its state. For example, consider the following C++ code:
    * ```
    * int a = 1;
    * increment(&a);