Someone runs the formatter, the line width changes, and suddenly the pull request touches 80 lines. You scroll through all of it looking for the actual change — and there isn't one. Or there's exactly one, buried in 79 lines of re-wrapping.
Source: [Dev.to](https://dev.to/_06a3df6b50aec966668fb/a-reformatted-pr-shows-80-changed-lines-but-changed-nothing-i-built-a-zero-dep-diff-that-sees-41pf)