misc: improve patch and xargs default usage on helpers.

helpers/make-akregator

helpers/make-arctica-greeter

helpers/make-asunder

helpers/make-ayatana-indicator-sound

helpers/make-base-installer

helpers/make-birdtray

helpers/make-bleachbit

helpers/make-budgie-artwork

helpers/make-budgie-desktop-environment

helpers/make-cargo

helpers/make-choose-mirror

helpers/make-command-not-found

helpers/make-connman

helpers/make-console-setup

helpers/make-cwidget

helpers/make-cython

helpers/make-debian-installer

helpers/make-distro-info

helpers/make-distro-info-data

helpers/make-finish-install