* qubesos/pr/63:
archlinux: restore setup of pam.d/su-l
archlinux: remove python3 dependency
archlinux: ensure [options] section is present in all pacman drop-ins
archlinux: enforce usage of python2 in all scripts
Makefile: avoid using python interpreter as a static name
archlinux: create user 'user' using bash by default instead of zsh
archlinux: ship pam.d/qrexec as a replacement of using su
archlinux: do not mess with locales in post-install script
archlinux: remove pam configuration for su and su-l
archlinux: remove deprecated setup of pam since v4.0.3
Add the 4.0 repo to the PKGBUILD sources list
Restore the binary pacman repo and update it for QubesOS 4.0
Fix the makefile for archlinux - SBINDIR is already /usr/bin
Update the arch PKGBUILD script for QubesOS 4.0