doc: omit useless _() invocation
In this case, column positioning isn't needed for i18n, too.
Maybe, check-code warning "missing _() in ui message" caused this
useless _() invocation in
92d37fb3f1aa.
--- a/mercurial/hg.py Mon Aug 01 06:08:25 2016 +0900
+++ b/mercurial/hg.py Mon Aug 01 06:08:26 2016 +0900
@@ -896,7 +896,7 @@
ret = (ctx.sub(subpath, allowcreate=False).verify()
or ret)
except error.RepoError as e:
- repo.ui.warn(_('%s: %s\n') % (rev, e))
+ repo.ui.warn(('%s: %s\n') % (rev, e))
except Exception:
repo.ui.warn(_('.hgsubstate is corrupt in revision %s\n') %
node.short(ctx.node()))