Re: widen vacuum buffer counters

On 2020-Jan-31, Tom Lane wrote:

> Also, %zd is the wrong format code for int64.  Recommended practice
> these days is to use "%lld" with an explicit cast of the printf argument
> to long long (just to be sure).  That doesn't work safely before v12,
> and if you did insist on back-patching further, you'd need to jump
> through hoops to avoid having platform-specific format codes in a
> translatable string.  (The side-effects for translation seem like
> an independent argument against back-patching.)

Pushed with that change; did not backpatch, because I don't think it's
really worth the possible breakage :-)

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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