Can we stop revbumping the world please?

[Jonathan Schleifer <js%NetBSD.org@localhost>]

Due to the recent two(!) icu revbumps, I have to rebuild almost every 
package on my machine now, which will probably take about a week (as 
it's a slow ARM64). Meanwhile, to put things into perspective, I have a 
*single* package actually depending on icu installed. I am now 
rebuilding hundreds and hundreds of packages on an slow machine when all 
that would actually need to be rebuilt is a single package.

I've also noticed that many of the packages I maintain get revbumped 
frequently, for completely unrelated packages (not just icu). Can we 
please stop saying "Oh, I updated some library, let me revbump every 
single package in the tree"? It doesn't scale (we can't rebuild every 
single package in pkgsrc every time a library updates). It doesn't make 
sense. It wastes time, energy and space. It's literally destroying the 
planet for no reason.

Thanks,
Jonathan