1) Always create /bin/sh symlink at post-installation.
2) If dash is going to be removed, make /bin/sh a symlink
to /bin/bash, if it exists otherwise it will be dangled.
This fixes the update of the dash package.
Bump revision.
--HG--
extra : convert_revision : 38586de9f72d0b5f4c7498dbef3709d77f4f07db
