Log Message:
-----------
Remove some empty columns from a few system catalog tables in the
SGML docs.
Modified Files:
--------------
pgsql/doc/src/sgml:
catalogs.sgml (r2.154 -> r2.155)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/catalogs.sgml.diff?r1=2.154&r2=2.155)