Section 2302(f) of title 5, United States Code, is amended— (1) by striking (1) A and inserting A; (2) by striking paragraph (2); (3) by redesignating subparagraphs (A) through (G) as paragraphs (1) through (7), respectively, and adjusting the margins accordingly; (4) in paragraph (6), as so redesignated, by striking or at the end; (5) in paragraph (7), as so redesignated, by striking the period at the end and inserting; or; and (6) by inserting at the end the following: (8) the disclosure is made during the normal course of duties of an employee, the principal job function of whom is to regularly investigate and disclose wrongdoing..