commit-graph: improve & i18n error messages

Change the error emitted when a commit-graph file is corrupt so that
we actually mention the commit-graph, e.g. change errors like:

    error: improper chunk offset 0000000000385e0c

To:

    error: commit-graph improper chunk offset 0000000000385e0c

As discussed in the commits leading up to this one the commit-graph
machinery is now used by common commands like "status". If the graph
was corrupt we'd often emit some error that gave no indication what
was wrong. Now some of them are still cryptic, but they'll at least
mention "commit-graph" to give the user a hint as to where to look.

While I'm at it mark some of the strings that hadn't been marked for
translation. It's clear from the commit history and the code that this
was merely forgotten at the time, and wasn't intentional.p5

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

0 files changed, 0 insertions, 0 deletions