Josm does not launch

This is an interesting proposal but I get on error when installing it

==> Lancement de prepare()…
/var/tmp/pamac-build-guirec/java-openjfx/PKGBUILD: ligne 67: patch : commande introuvable
==> ERREUR : Une erreur s’est produite dans prepare().
    Abandon…

Sorry for the French if it is a problem but the Command “patch” cannot be found.
I am not competent enough to edit the AUR package


Moderator edit: In the future, please use proper formatting: [HowTo] Post command output and file content as formatted text