1.) Always install the binary. The permissions of "/var/mail" on
the build system are just no good indicator to determine whether
this program is required or not.
2.) Don't try to set the permissions of the binary in the makefile
and add it to "SPECIAL_PERMS" instead. Mark the package as capable
of user destinaton directory installation again.
Bump package revision because the binary package has changed at least
under NetBSD with default permissions for "/var/mail".
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