change the alert message of unused-local-variable

Author: erik-krogh

cpp/ql/src/Best Practices/Unused Entities/UnusedLocals.ql

@@ -58,4 +58,4 @@ where
   not exists(AsmStmt s | f = s.getEnclosingFunction()) and
   not v.getAnAttribute().getName() = "unused" and
   not any(ErrorExpr e).getEnclosingFunction() = f // unextracted expr may use `v`
-select v, "The value assigned to local variable '" + v.getName() + "' is never used."
+select v, "Variable " + v.getName() + " is not used"

python/ql/src/Variables/UnusedLocalVariable.ql

@@ -43,4 +43,4 @@ where
   unused_local(unused, v) and
   // If unused is part of a tuple, count it as unused if all elements of that tuple are unused.
   forall(Name el | el = unused.getParentNode().(Tuple).getAnElt() | unused_local(el, _))
-select unused, "The value assigned to local variable '" + v.getId() + "' is never used."
+select v, "Variable " + v.getId() + " is not used"