C++: Address review comments

Author: calumgrant

cpp/ql/src/change-notes/2024-11-22-too-few-arguments.md

@@ -1,4 +1,4 @@
 ---
 category: minorAnalysis
 ---
-* The "Call to function with fewer arguments than declared parameters" query (`cpp/too-few-arguments`) query produces no results if the function has been implicitly declared.
+* The "Call to function with fewer arguments than declared parameters" query (`cpp/too-few-arguments`) query no longer produces results if the function has been implicitly declared.

cpp/ql/test/query-tests/Likely Bugs/Underspecified Functions/test.c

@@ -31,7 +31,7 @@ void test(int *argv[]) {
   not_yet_declared1(1); // BAD (GOOD for everything except for cpp/implicit-function-declaration)
   not_yet_declared2(1); // BAD (GOOD for everything except for cpp/implicit-function-declaration)
   not_yet_declared2(ca); // BAD (GOOD for everything except for cpp/mistyped-function-arguments)
-  not_yet_declared2(); // GOOD
+  not_yet_declared2(); // BAD [NOT DETECTED] (GOOD for everything except for cpp/too-few-arguments)
 
   declared_empty_defined_with(); // BAD
   declared_empty_defined_with(1); // GOOD