Update cpp/ql/test/library-tests/dataflow/dataflow-tests/test.cpp

Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>

Author: MathiasVP

cpp/ql/test/library-tests/dataflow/dataflow-tests/test.cpp

@@ -779,7 +779,7 @@ void test_sometimes_calls_sink_lt() {
 void sometimes_calls_sink_switch(int x, int n) {
   switch(n) {
     case 0:
-      sink(x); // $ ast,ir=790:31 SPURIOUS: ast,ir=788:31 // IR spurious results because IRGuard don't understand switch statements.
+      sink(x); // $ ast,ir=790:31 SPURIOUS: ast,ir=788:31 // IR spurious results because IRGuard doesn't understand switch statements.
       break;
   }
 }