Remove some empty columns from a few system catalog tables in the

SGML docs.

doc/src/sgml/catalogs.sgml

@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.154 2007/06/08 21:09:49 alvherre Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.155 2007/06/20 19:24:05 neilc Exp $ -->
 <!--
  Documentation of the system catalogs, directed toward PostgreSQL developers
  -->
@@ -1037,7 +1037,7 @@
   <table>
    <title><structname>pg_authid</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>
@@ -2816,7 +2816,7 @@
   <table>
    <title><structname>pg_largeobject</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>
@@ -4928,7 +4928,7 @@
   <table>
    <title><structname>pg_cursors</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>
@@ -5385,7 +5385,7 @@
   <table>
    <title><structname>pg_prepared_statements</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>
@@ -5751,7 +5751,7 @@
   <table>
    <title><structname>pg_settings</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>
@@ -6286,7 +6286,7 @@
   <table>
    <title><structname>pg_user</> Columns</title>
 
-   <tgroup cols=4>
+   <tgroup cols=3>
     <thead>
      <row>
       <entry>Name</entry>