Correct error handling comment.

{{ cookiecutter.format }}/src/bootstrap/main.c

@@ -240,7 +240,8 @@ int main(int argc, char *argv[]) {
                 // SystemExit with error code
                 ret = (int) PyLong_AsLong(systemExit_code);
             } else {
-                // Convert exit code to a string. This is required by runpy._error
+                // Error code is a string. This is generated by runpy._error.
+                // Output that string directly.
                 ret = -11;
                 printf("---------------------------------------------------------------------------\n");
                 printf("Application quit abnormally!\n");