trac #16730: PermutationGroup.blocks_all with correct labels
fixed typos in dostrings
Trac #16730: PermutationGroup.blocks_all with correct labels

Before

{{{
sage: g = PermutationGroup([("a","b","c","d")])
sage: g.blocks_all()
[[1, 3]]
sage: g.blocks_all(False)
[[[1, 3], [2, 4]]]
}}}

After

{{{
sage: g = PermutationGroup([("a","b","c","d")])
sage: g.blocks_all()
[['a', 'c']]
sage: g.blocks_all(False)
[[['a', 'c'], ['b', 'd']]]
}}}

URL: http://trac.sagemath.org/16730
Reported by: ncohen
Ticket author(s): Nathann Cohen
Reviewer(s): Dima Pasechnik