> Does it mean it's from that changeset?
> 
> changeset:   39036:dff91b90d74c
> user:        blanchet
> date:        Thu Sep 02 11:29:02 2010 +0200
> files:       src/HOL/HOL.thy src/HOL/Hilbert_Choice.thy src/HOL/SAT.thy 
> src/HOL/Sledgehammer.thy src/HOL/Tools/Sledgehammer/clausifier.ML
> description:
> use definitional CNFs in Metis rather than plain CNF, following a suggestion 
> by Joe Hurd;
> this *really* speeds up things -- HOL now builds 12% faster on my machine
> 
> 
> I know this temptation to "announce" things on the log only too well. 
> Empirically, the reality is much harder.
> 
> When composing log messages it is important do this from the perspective of 
> someone who needs to figure out problems many months/years later, and needs 
> to understand what was truely happening at some point.  (Not so much what the 
> author thought he was doing, or when the author went on vacation etc.)  
> Changelogs are neither NEWS nor personal Blog entries.

And public mailing lists are not the best place to criticize your colleagues' 
writing style.

Jasmin

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