build-aux: update.
build-aux: update.

commit:dd486348d4c5a6c20d91b9ce37a68ee17a0daaef
Author: Akim Demaille <demaille@gostai.com>
Date:   Tue Jun 21 10:55:50 2011 +0200

    tex4ht-post: re-enable span-reduction.

        * bin/tex4ht-post: To limit the greediness of the regexp, use [^<].

aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi