New comment by zdykstra on void-packages repository

https://github.com/void-linux/void-packages/pull/19789#issuecomment-595460883

Comment:
In that case, I think the only one that actually needs an /update file is perl-Test-Trap. 

ci20-uboot is a git checkout that resets to a hard-coded git sha
odroid-u2-uboot is also a git checkout of a specific git sha

I'll need to play around with defining a working `pattern` value for the update file for the remaining package.