tests/test-rollback.out

ui: look before you leap on sys.stderr.closed (and look nicer)

f83291e5643e introduced a fix if sys.stdout.closed does not exist.

This change uses a getattr with default instead of hasattr (which just calls
getattr) and accessing the attribute.

Additionally it applies the same fix for sys.stderr.closed as this is not
available in the bpython shell (reported by Roger Gammans).

checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
changeset:   0:0acdaf898367
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     test

rolling back last transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
0 files, 0 changesets, 0 total revisions
A a
% Test issue 902
marked working directory as branch test
rolling back last transaction
default
% Test issue 1635 (commit message saved)
.hg/last-message.txt:
test2
% Test rollback of hg before issue 902 was fixed
marked working directory as branch test
rolling back last transaction
Named branch could not be reset, current branch still is: test
test
% rollback by pretxncommit saves commit message (issue 1635)
transaction abort!
rollback completed
abort: pretxncommit hook exited ...
.hg/last-message.txt:
precious commit message
% same thing, but run $EDITOR
transaction abort!
rollback completed
note: commit message saved in .hg/last-message.txt
abort: pretxncommit hook exited ...
.hg/last-message.txt:
another precious commit message