[dmd-internals] Fix staging branch breakiing

[Leandro Lucarella]

kenji hara, el 12 de February a las 09:37 me escribiste:
> > It has no effect, I don't know why he used it. REF~N is used to specify
> > the Nth commit before the reference REF (for example HEAD~3 is 3 commits
> > before HEAD, and is the same as specifying HEAD^^^). So REF~0 is the
> > same as REF.
> 
> 
> Yes, it is no effect, but a tag sticks always to a commit, not branch.
> The form "REF~0" definitely represents a commit object, even if REF refers
> a branch.
> I used it in order to make the command more descriptive.

Technically nothing can refer to a branch, branches are just labels and
are always resolved to commits too :)

-- 
Leandro Lucarella (AKA luca)                     http://llucax.com.ar/
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