DECLARE manual page fix

I have applied the following patch to the DECLARE manual page.

The page described INSENSITIVE cursors in terms of transactions, though
they are not really the issue.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
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Index: doc/src/sgml/ref/declare.sgml
===================================================================
RCS file: /cvsroot/pgsql-server/doc/src/sgml/ref/declare.sgml,v
retrieving revision 1.19
diff -c -c -r1.19 declare.sgml
*** doc/src/sgml/ref/declare.sgml    10 Mar 2003 03:53:48 -0000    1.19
--- doc/src/sgml/ref/declare.sgml    21 Mar 2003 16:51:36 -0000
***************
*** 58,66 ****
         <para>
      <acronym>SQL92</acronym> keyword indicating that data retrieved
      from the cursor should be unaffected by updates from other processes or cursors.
!     Since cursor operations occur within transactions
!     in <productname>PostgreSQL</productname> this is always the case.
!     This keyword has no effect.
         </para>
        </listitem>
       </varlistentry>
--- 58,64 ----
         <para>
      <acronym>SQL92</acronym> keyword indicating that data retrieved
      from the cursor should be unaffected by updates from other processes or cursors.
!     By default, all cursors are insensitive.  This keyword has no effect.
         </para>
        </listitem>
       </varlistentry>