Distros that places symlinks to bash in all those locations solves this, and allows all POSIX-compliant shebangs for sh and bash. On Arch Linux, /bin/bash, /bin

Distros that places symlinks to bash in all those locations solves this, and allows all POSIX-compliant shebangs for sh and bash. On Arch Linux, /bin/bash, /bin/sh and /usr/bin/sh all point to /usr/bin/bash.