Missing documention on SIGHUP

I see there is no mention of SIGHUP in the postmaster manual page.  It
is mentioned in the postgres manual page, though.

This patch adds the mention.

--
  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
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
Index: doc/src/sgml/ref/postgres-ref.sgml
===================================================================
RCS file: /cvsroot/pgsql-server/doc/src/sgml/ref/postgres-ref.sgml,v
retrieving revision 1.37
diff -c -c -r1.37 postgres-ref.sgml
*** doc/src/sgml/ref/postgres-ref.sgml    24 Sep 2003 18:54:01 -0000    1.37
--- doc/src/sgml/ref/postgres-ref.sgml    16 Oct 2003 17:30:52 -0000
***************
*** 370,381 ****
    </para>

    <para>
!    To tell <command>postgres</command> to reread the configuration file,
     send a <literal>SIGHUP</literal> signal.  Normally it's best to
     <literal>SIGHUP</literal> the <command>postmaster</command> instead;
     the <command>postmaster</command> will in turn <literal>SIGHUP</literal>
     each of its children.  But in some cases it might be desirable to have only
!    one <command>postgres</command> process reread the configuration file.
    </para>

    <para>
--- 370,381 ----
    </para>

    <para>
!    To tell <command>postgres</command> to reload the configuration files,
     send a <literal>SIGHUP</literal> signal.  Normally it's best to
     <literal>SIGHUP</literal> the <command>postmaster</command> instead;
     the <command>postmaster</command> will in turn <literal>SIGHUP</literal>
     each of its children.  But in some cases it might be desirable to have only
!    one <command>postgres</command> process reload the configuration files.
    </para>

    <para>
Index: doc/src/sgml/ref/postmaster.sgml
===================================================================
RCS file: /cvsroot/pgsql-server/doc/src/sgml/ref/postmaster.sgml,v
retrieving revision 1.40
diff -c -c -r1.40 postmaster.sgml
*** doc/src/sgml/ref/postmaster.sgml    18 Sep 2003 20:30:15 -0000    1.40
--- doc/src/sgml/ref/postmaster.sgml    16 Oct 2003 17:30:52 -0000
***************
*** 487,493 ****
     all clients to terminate before quitting, the second will
     forcefully disconnect all clients, and the third will quit
     immediately without proper shutdown, resulting in a recovery run
!    during restart.
    </para>

    <para>
--- 487,494 ----
     all clients to terminate before quitting, the second will
     forcefully disconnect all clients, and the third will quit
     immediately without proper shutdown, resulting in a recovery run
!    during restart.   The <literal>SIGHUP</literal> signal will
!    reload the server configuration files.
    </para>

    <para>