[tz] leap-seconds.list format

[Paul Eggert]

On 2024-02-09 14:20, brian.inglis--- via tz wrote:
>> On 2/8/24 06:21, Martin Burnicki via tz wrote:
>>> For higher security the file should be signed using a public key 
>>> certificate ...
> 
> You can check leap-seconds.list sha1

That SHA1 checksum merely checks for data corruption. Martin was asking 
for a signature via a public key certificate. Such a signature also 
verifies that the sender is not some random attacker; this is a stronger 
guarantee than a checksum. This is why TZDB releases have signed tags on 
GitHub and why release announcements contain the tarballs' PGP signatures.