It would be too easy if we could just call sorted(). Thanks to zone
grammar the most important key "type" gets sorted near end, so we pull
it up to the top using a hack.
(cherry picked from commit 5c04e3c524)
It turns out the tree of dictionaries is not the best structure to
represent our grammar, unfortunatelly. The problem is that "zone" has
several context-dependent variants which change meaning of "zone" based
on inner field "type".
Redesigning the whole structure does not seem to be worth, so I settled
on this terrible hack.
(cherry picked from commit 0392144e99)
It produces the same format as cfg_test --grammar. The advantage is that
it allows to print any node in configuration the tree, not just whole
blocks.
(cherry picked from commit 190004e46c)
The utility detects statements which use the same name (e.g.
max-zone-ttl) but use different grammar in different contexts. These
typically need special case in docs.
(cherry picked from commit 8960d51aa3)
