[swift-evolution] Request for quickie proposal and review

[Dave Abrahams]

Hi,

It occurred to us a couple weeks ago that the name `Value` was
a terrible name for the first parameter to `ManagedBuffer` et al, so I
prepared this patch that renames it to `Header`.  

https://github.com/apple/swift/commit/eb7311de065df7ea332cdde8782cb44f9f4a5121

I would be immensely grateful if someone would like to volunteer to
write up a quick proposal for this change and pushing it the process.

TIA,

-- 
Dave