keyword: remove "help keyword" from test
Testing help output does not make sense as we have no way to
check for errors in content which would be the only reasonable
test here.
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
removing b
created new head
% should abort
abort: crosses branches (use 'hg merge' or 'hg update -C' to discard changes)
% should succeed
abort: crosses branches (use 'hg merge' or 'hg update -C')