vc-annotate does not copy truncate-lines from the origin buffer

[Gustav Hållberg]

If you have set truncate-lines in a buffer, it would make a lot of sense for
the vc-annotate command to use that setting in the newly created annotation
buffer too (the same could probably be said for other variables too, but this
is the one I was being annoyed by right now).

Suggested patch attached.

- Gustav

vc-annotate-truncate-lines.patch
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