Log Message:-----------Improve SGML build rules for non-HTML output, per Peter.
Modified Files:-------------- pgsql/doc/src/sgml: Makefile (r1.89 -> r1.90) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/Makefile.diff?r1=1.89&r2=1.90)
