weight/weight.cc: Add missing parameter to debug logging for
Weight::init_().

git-svn-id: file:///home/xapian-svn/xapian/trunk@18210 6b2f1b92-a4f3-0310-943f-de3cbe41748b
api/,backends/brass/,backends/chert/,
backends/contiguousalldocspostlist.cc,
backends/contiguousalldocspostlist.h,backends/database.h,
backends/inmemory/inmemory_database.cc,
backends/inmemory/inmemory_database.h,
backends/multi/multi_postlist.cc,backends/multi/multi_postlist.h,
backends/remote/,common/remoteprotocol.h,docs/sorting.rst,
include/xapian/database.h,include/xapian/postingiterator.h,
include/xapian/weight.h,matcher/,net/remoteserver.cc,
net/remoteserver.h,tests/,weight/: Provide the number of distinct
terms in the document to weighting schemes.  The current
implementation for the disk-based backends is a bit inefficient as
it has to look at the termlist table entry for the document.

git-svn-id: file:///home/xapian-svn/xapian/trunk@18211 6b2f1b92-a4f3-0310-943f-de3cbe41748b
Merge remote-tracking branch 'xapian/master' into UnigramLMWeight

Conflicts:
	xapian-core/backends/brass/brass_postlist.h
	xapian-core/include/xapian/weight.h
	xapian-core/matcher/extraweightpostlist.h
Merge branch 'UnigramLMWeight' of github.com:ojwb/xapian into UnigramLMWeight