xorg-sgml-doctools: update to 1.12.

Alan Coopersmith (8):
      configure: Drop AM_MAINTAINER_MODE
      autogen.sh: Honor NOCONFIGURE=1
      nextfullreldate is clearly not 2013
      Set generate.consistent.ids in xsl stylesheets for more repeatable builds
      Update README for gitlab migration
      Update configure.ac bug URL for gitlab migration
      Fix spelling/wording issues
      xorg-sgml-doctools 1.12

Emil Velikov (1):
      autogen.sh: use quoted string variables

Mihail Konev (1):
      autogen: add default patch prefix

Peter Hutterer (1):
      autogen.sh: use exec instead of waiting for configure to finish

(wiz)