Fix a couple of broken links to third-party sites.

doc/src/sgml/cube.sgml

@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/cube.sgml,v 1.6 2009/05/18 11:08:24 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/cube.sgml,v 1.7 2009/12/08 20:08:30 mha Exp $ -->
 
 <sect1 id="cube">
  <title>cube</title>
@@ -372,12 +372,12 @@ t
 
   <para>
    My thanks are primarily to Prof. Joe Hellerstein
-   (<ulink url="http://db.cs.berkeley.edu/~jmh/"></ulink>) for elucidating the
+   (<ulink url="http://db.cs.berkeley.edu/jmh/"></ulink>) for elucidating the
    gist of the GiST (<ulink url="http://gist.cs.berkeley.edu/"></ulink>), and
    to his former student, Andy Dong (<ulink
    url="http://best.me.berkeley.edu/~adong/"></ulink>), for his example
    written for Illustra,
-   <ulink url="http://garcia.me.berkeley.edu/~adong/rtree"></ulink>.
+   <ulink url="http://best.berkeley.edu/~adong/rtree/index.html"></ulink>.
    I am also grateful to all Postgres developers, present and past, for
    enabling myself to create my own world and live undisturbed in it. And I
    would like to acknowledge my gratitude to Argonne Lab and to the

doc/src/sgml/installation.sgml

@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.330 2009/12/08 19:22:43 mha Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.331 2009/12/08 20:08:30 mha Exp $ -->
 
 <chapter id="installation">
  <title><![%standalone-include[<productname>PostgreSQL</>]]>
@@ -2726,8 +2726,8 @@ cc-1020 cc: ERROR File = pqcomm.c, Line = 427
      example, gzip, gunzip, GNU Make, Flex, and Bison are all
      included.  For UnixWare 7.1, this CD is now labeled "Open License
      Software Supplement".  If you do not have this CD, the software
-     on it is available via anonymous FTP
+     on it is available
-     from <ulink url="ftp://ftp.sco.com/skunkware"></ulink>.
+     from <ulink url="http://www.sco.com/skunkware/"></ulink>.
     </para>
 
     <para>

doc/src/sgml/pgcrypto.sgml

@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/pgcrypto.sgml,v 1.7 2009/05/18 11:08:24 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/pgcrypto.sgml,v 1.8 2009/12/08 20:08:30 mha Exp $ -->
 
 <sect1 id="pgcrypto">
  <title>pgcrypto</title>
@@ -1207,7 +1207,7 @@
      <para>Jean-Luc Cooke Fortuna-based /dev/random driver for Linux.</para>
     </listitem>
     <listitem>
-     <para><ulink url="http://www.cs.ut.ee/~helger/crypto/"></ulink></para>
+     <para><ulink url="http://research.cyber.ee/~lipmaa/crypto/"></ulink></para>
      <para>Collection of cryptology pointers.</para>
     </listitem>
    </itemizedlist>

doc/src/sgml/seg.sgml

@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/seg.sgml,v 1.5 2009/05/18 11:08:24 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/seg.sgml,v 1.6 2009/12/08 20:08:30 mha Exp $ -->
 
 <sect1 id="seg">
  <title>seg</title>
@@ -373,7 +373,7 @@ postgres=> select '10(+-)1'::seg as seg;
 
   <para>
    My thanks are primarily to Prof. Joe Hellerstein
-   (<ulink url="http://db.cs.berkeley.edu/~jmh/"></ulink>) for elucidating the
+   (<ulink url="http://db.cs.berkeley.edu/jmh/"></ulink>) for elucidating the
    gist of the GiST (<ulink url="http://gist.cs.berkeley.edu/"></ulink>). I am
    also grateful to all Postgres developers, present and past, for enabling
    myself to create my own world and live undisturbed in it. And I would like