log: translate column labels at once (
issue5750)
This makes sure that all columns are aligned. getlogcolumns() is hosted by
templatekw so the namespaces module can see it.
i18n/de.po is updated so test-log.t passes with no error. "obsolete:" and
"instability:" are kept untranslated.
Test issue2761
$ hg init
$ touch to-be-deleted
$ hg add
adding to-be-deleted
$ hg ci -m first
$ echo a > to-be-deleted
$ hg ci -m second
$ rm to-be-deleted
$ hg diff -r 0
Same issue, different code path
$ hg up -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ touch does-not-exist-in-1
$ hg add
adding does-not-exist-in-1
$ hg ci -m third
$ rm does-not-exist-in-1
$ hg diff -r 1