[tz] NIST leap-second file not yet updated

[Paul Eggert]

On 02/17/2016 04:31 PM, Tim Parenti wrote:
> Others downloading the file from us and using our scripts to munge it 
> might not be, though

Sure, but these other people are already downloading many public-domain 
files from us and are are using our code and scripts to munge them, so 
making this new leap-second file public-domain won't give these other 
people problems that they don't already have. This is why a 
public-domain license is the simplest solution for us and our users.