help: document weird behavior of uisetup()
While refactoring ui.log() API, it was really annoying that uisetup() is
actually an extsetup() the phase 1. Let's document that. I'm planning to
add another uisetup() which is called per ui instance, though I can't think
of a good name for it.
@echo off
powershell -NoProfile -ExecutionPolicy unrestricted -Command "& '%~dp0\editmergeps.ps1' %*"