packages: use dash as /bin/sh

41278471 · A. Wilcox · 6e81280c · 41278471
Verified Commit 41278471 authored Aug 18, 2019 by A. Wilcox 🦊
--- a/packages
+++ b/packages
 adelie-base-posix
-bash-binsh
+dash-binsh
 ssmtp
 s6-linux-init
 openrc