self-proposed patch works for me
- bug#46532: plantuml in pure environment does not... Dr. Arne Babenhauserheide
- bug#46532: plantuml in pure environment doe... Maxime Devos
- bug#46532: plantuml in pure environment doe... Maxime Devos via web
- bug#46532: plantuml in pure environment doe... Efraim Flashner
