[PKG-OpenRC-Debian] Bug#738628: Reproduced on Gentoo

[Benda Xu]

The failing point is exim4.orig provides exim4, in the deptree, exim4 is
essentially overridden by exim4.orig.  But runlevel refers the file
"exim4".  Such inconsistency is the cause.

In Gentoo, a package rarely provides something.  So the bug is not so
severe there.

Example:

# rc-status
Runlevel: default
 sshd [  started  ]
 tincd [  started  ]
 local [  started  ]
Dynamic Runlevel: hotplugged
Dynamic Runlevel: needed
Dynamic Runlevel: manual

cp /tmp/local.orig /etc/init.d; head -11 /etc/init.d/local.orig

> #!/sbin/openrc-run
> # Copyright (c) 2007-2008 Roy Marples <roy at marples.name>
> # Released under the 2-clause BSD license.

> description="Executes user programs in /etc/local.d"

> depend()
> {
>         after *
>         keyword -timeout
>         provide local
          ~~~~~~~~~~~~~

provide is crucial here.

# rc-status
 * Caching service dependencies ... [ ok ]
Runlevel: default
 sshd [  started  ]
 tincd [  started  ]
Dynamic Runlevel: hotplugged
Dynamic Runlevel: needed
Dynamic Runlevel: manual