dev/sg: make os.Exit check more granular, apply review comments (!35806) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge sg-pr-review-comments into main May 20, 2022

Created by: bobheadxi

Applies review comments from https://github.com/sourcegraph/sourcegraph/pull/35761 and https://github.com/sourcegraph/sourcegraph/pull/35760

Test plan

n/a