adafruit-pitft.sh: Installation for ST7789V fails

[galvanized]

I'm trying to use adafruit-pitft.sh to install support for the Adafruit 1.14" 240x135 Color TFT Display (ST7789). However, doing so fails. Software and script are up-to-date today 2020-03-14.

Pi: Raspberry Pi Zero W V1.1
OS: Raspbian 10 (buster)
Display: Adafruit 1.14" 240x135 Color TFT Display + MicroSD Card Breakout - ST7789
Script: adafruit-pitft.sh

Selections
Configuration: 6 (MiniPiTFT 1.14" display (240x135) - WARNING! CUTTING EDGE! WILL UPGRADE YOUR KERNEL TO LATEST)
Rotation: 4 (0 degrees (portrait))

Output excerpts
[PITFT] Installing Python libraries & Software...
Installing Pre-requisite Software...This may take a few minutes!
[PITFT] Updating /boot/config.txt...
FATAL ERROR: Couldn't open "overlays/minipitft114-overlay.dts": No such file or directory

...and after upgrade...
./adafruit-pitft.sh: line 261: cd: st7789_module: No such file or directory
make: Entering directory '/usr/src/linux-headers-4.19.97+'
scripts/Makefile.build:45: /home/pi/Makefile: No such file or directory
make[1]: *** No rule to make target '/home/pi/Makefile'. Stop.
make: *** [Makefile:1522: _module_/home/pi] Error 2
make: Leaving directory '/usr/src/linux-headers-4.19.97+'
WARNING : Apt failed to compile ST7789V driver!

[ladyada]

please delete and try re-git-cloneing the directory, you missed some files :)
https://learn.adafruit.com/adafruit-mini-pitft-135x240-color-tft-add-on-for-raspberry-pi/kernel-module-install