Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero. Some systems show "Thu Jan 01" instead of "Thu Jan 1", which breaks tests. Using "1000000" yields "Mon Jan 12 13:46:40 1970", which looks the same on all systems.

removing b
this update spans a branch affecting the following files:
 b
aborting update spanning branches!
(use update -m to merge across branches or -C to lose changes)