[Boost-build] Boost Jam's error location reporting updated.

From: Jurko Gospodnetiæ (jurko.gospodnetic_at_[hidden])
Date: 2008-09-02 07:09:00

   Hi all.

   I just committed a patch for Boost Jam updating its error location 
reporting when parsing Jamfiles.

   Changeset link: http://svn.boost.org/trac/boost/changeset/48534

   Now it reports the correct error location information (including the 
file name that was missing!) when encountering an unexpected EOF.

   It now also reports where an invalid lexical token being read started 
instead of finished which makes it much easier to find errors like 
unclosed quotes (") or curly braces ({).

   Hope this helps.

   Best regards,
     Jurko Gospodnetiæ