Fix some markup problems.

doc/src/sgml/ref/set.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.76 2003/05/14 03:26:00 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.77 2003/06/21 19:33:36 tgl Exp $
 PostgreSQL documentation
 -->
 
@@ -120,7 +120,7 @@ SET [ SESSION | LOCAL ] TIME ZONE { <replaceable class="PARAMETER">timezone</rep
      <term><literal>NAMES</literal></term>
      <listitem>
       <para>
-       <literal>>SET NAMES <replaceable>value</></> is an alias for
+       <literal>SET NAMES <replaceable>value</></> is an alias for
        <literal>SET client_encoding TO <replaceable>value</></>.
       </para>
      </listitem>
@@ -150,9 +150,9 @@ SELECT setseed(<replaceable>value</replaceable>);
      <term><literal>TIME ZONE</literal></term>
      <listitem>
       <para>
-       <literal>>SET TIME ZONE <replaceable>value</></> is an alias
+       <literal>SET TIME ZONE <replaceable>value</></> is an alias
        for <literal>SET timezone TO <replaceable>value</></>.  The
-       syntax <literal>>SET TIME ZONE</literal> allows special syntax
+       syntax <literal>SET TIME ZONE</literal> allows special syntax
        for the time zone specification.  Here are examples of valid
        values:
 
@@ -185,8 +185,8 @@ SELECT setseed(<replaceable>value</replaceable>);
          <term><literal>7</literal></term>
          <listitem>
           <para>
-           The time zone to 7 hours offset west from UTC (equivalent
-           to PDT).
+           The time zone 7 hours west from UTC (equivalent
+           to PDT).  Negative values are east from UTC.
           </para>
          </listitem>
         </varlistentry>
@@ -194,7 +194,7 @@ SELECT setseed(<replaceable>value</replaceable>);
          <term><literal>INTERVAL '08:00' HOUR TO MINUTE</literal></term>
          <listitem>
           <para>
-           The time zone to 8 hours offset west from UTC (equivalent
+           The time zone 8 hours west from UTC (equivalent
            to PST).
           </para>
          </listitem>