[tz] zdump with version 1 files

[Paul Eggert]

On 3/21/20 2:08 PM, Brian Inglis wrote:
> This appears to be the process doc:
> 
> 	https://source.android.com/devices/tech/config/timezone-rules
> 
> and this appears to be the main code:
> 
> https://android.googlesource.com/platform/system/timezone/+/refs/heads/master/update-tzdata.py

Thanks for the links. They talk about how TZif files are assembled together into 
a single tzdata file. However, as I vaguely recall the Android folks modified 
zic to generate 32-bit only TZif files. I don't offhand know whether that is 
still true, or how to verify whether it's true. Perhaps it was true long ago but 
became false when Android started supporting 64-bit CPUs; a bit of Googling 
suggests this occurred with Android 5.0 Lollipop (2014).