tests/test-rebase-rename.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).

adding a
adding b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head

% Rename is tracked
2:rename A
diff --git a/a b/a-renamed
rename from a
rename to a-renamed

% Rebase the revision containing the rename
saving bundle to 

% Rename is not lost
2:rename A
diff --git a/a b/a-renamed
rename from a
rename to a-renamed

adding a
adding b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head

% Copy is tracked
2:copy A
diff --git a/a b/a-copied
copy from a
copy to a-copied

% Rebase the revision containing the copy
saving bundle to 

% Copy is not lost
2:copy A
diff --git a/a b/a-copied
copy from a
copy to a-copied