chore: substitute dash by dash-next in system declaration

buer.scm

@@ -5,6 +5,7 @@
  #|Radix|# (radix artwork)
            (radix packages linux)
            (radix packages text-editors)
+           (radix packages shells)
            (radix services linux)
            (radix system setuid)
            (radix secrets)
@@ -27,7 +28,6 @@
  #|G|# gawk glib guile guile-xyz
  #|L|# less linux
  #|M|# man
- #|S|# shells
  #|T|# texinfo tmux
  #|V|# vpn)
 
@@ -78,7 +78,7 @@
           (name "radio")
           (password %radio-password)
           (home-directory "/home/radio")
-          (shell (file-append dash "/bin/dash"))
+          (shell (file-append dash-next "/bin/dash"))
           (uid 1000)
           (group "users")
           (supplementary-groups `("audio" "input" "video" "wheel")))
@@ -89,7 +89,7 @@
           (home-directory "/root")
           (uid 0)
           (group "root")
-          (shell (file-append dash "/bin/dash")))
+          (shell (file-append dash-next "/bin/dash")))
          %base-user-accounts))
 
  #|System level packages|#
@@ -105,7 +105,7 @@
         #|linux       |# e2fsprogs eudev fuse iproute kbd kmod lm-sensors procps
                          psmisc thinkfan-next util-linux
         #|man         |# man-db mandoc man-pages
-        #|shells      |# dash
+        #|shells      |# dash-next
         #|texinfo     |# info-reader
         #|text-editors|# kakoune-next
         #|tmux        |# tmux
@@ -244,7 +244,7 @@
 
         #|Special file services|#
         (service special-files-service-type
-                 `(("/bin/sh"      ,(file-append dash      "/bin/dash"))
+                 `(("/bin/sh"      ,(file-append dash-next "/bin/dash"))
                    ("/usr/bin/env" ,(file-append coreutils "/bin/env"))))
 
         #|Miscellaneous services|#