tests/test-dispatch.py.out

generate-working-copy-states: accept depth arguments on command line

Add a parameter to generate-working-copy-states.py that indicates
how many changesets are wanted. This number impacts all the
subcommands. The current 'filelist' subcommand becomes 'filelist 2',
the current 'base' and 'parent' subcommands become 'state 2 1' and
'state 2 2' respectively, while 'wc' becomes 'state 2 wc'.

See earlier patch for motivation.

running: init test1
result: None
running: add foo
result: 0
running: commit -m commit1 -d 2000-01-01 foo
result: None
running: commit -m commit2 -d 2000-01-02 foo
result: None
running: log -r 0
changeset:   0:0e4634943879
user:        test
date:        Sat Jan 01 00:00:00 2000 +0000
summary:     commit1

result: None
running: log -r tip
changeset:   1:45589e459b2e
tag:         tip
user:        test
date:        Sun Jan 02 00:00:00 2000 +0000
summary:     commit2

result: None