[PATCH 0 of 1] identify: use verbose flag to display nearest surrounding tags

[Gilles Moris]

Slightly change the style for multiple tags on the same cset.
% hg id -v
 04b2329333f9 qtip/tip/patch2
-based on alttop(-2)/top(-2)
+based on alttop/top(-2)

After speaking on IRC, we decided to postpone template filters
to post 1.2, up we find a better implementation approach.

Regards.
Gilles.