Summary:
Description fix and handle nil in case of -ve case.

Original commit: 7f5b79ecde755a77de8ac4ce17e44cce28220233 / D54948

Test Plan: UT passed.

Reviewers: anijhawan, skhilar

Reviewed By: anijhawan

Subscribers: yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D55038