The variable `l_note` is not used in [G-2120](https://trivadis.github.io/plsql-and-sql-coding-guidelines/v4.2/4-language-usage/2-variables-and-types/1-general/g-2120/#example-bad) and [G-2130](https://trivadis.github.io/plsql-and-sql-coding-guidelines/v4.2/4-language-usage/2-variables-and-types/1-general/g-2130/#example-bad) in good and bad example. add `do_something(l_note);` to avoid this violation.
