Stop cross-file drift with Google's IfChange/ThenChange comments

Before I start pitching you anything, let me do what any good salesperson would do: let's get personal. If you have a terminal and a repo you know handy, run this: git grep -iE 'keep.* in sync|stays? in sync|also update|must (also )?be updated' The number you get back is what this whole post is abo