.DS_Store file dropped

[dnltsk]

No description provided.

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[cockroach-teamcity]

This change is 

[stevendanna]

Nice catch! This looks reasonable to me and I believe that the test failures are unrelated.

One minor thing, your commit message would fit more with our standard style if you did something like

.gitignore: ignore .DS_Store
    
This file is added by macOS and is almost always added to commits by
mistake.
    
Release note: None