Update install for upgraders.

INSTALL

@@ -199,7 +199,7 @@ For a fresh install or upgrading from previous releases of PostgreSQL:
 
           works.
 
-     If you used pg_dumpall, move the old directories out of the
+     If you used pg_dumpall, move the old directory out of the
      way.  Type the following:
 
      > mv /usr/local/pgsql /usr/local/pgsql.old
@@ -250,7 +250,8 @@ For a fresh install or upgrading from previous releases of PostgreSQL:
 
      then the above was necessary. Simply do this step then.
 
-  9. Create the database installation (the working data files). To do this
+  9. If you moved the old directory out of the way, 
+     create the database installation (the working data files). To do this
      you must log in to your PostgreSQL superuser account. It will not work
      as root.
 

doc/src/sgml/install.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/Attic/install.sgml,v 1.41.2.3 2000/06/05 10:59:16 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/Attic/install.sgml,v 1.41.2.4 2000/06/05 17:02:27 momjian Exp $
 -->
 
  <chapter id="install">
@@ -326,7 +326,7 @@ All of PostgreSQL is successfully made. Ready to install.
      </tip>
 
      <para>
-      If you used pg_dumpall, move the old directories out of the way.
+      If you used pg_dumpall, move the old directory out of the way.
       Type the following:      
 <programlisting>
 &gt; mv /usr/local/pgsql /usr/local/pgsql.old
@@ -392,7 +392,8 @@ libpq.so.2.1: cannot open shared object file: No such file or directory
 
     <step performance="required">
      <para>
-      Create the database installation (the working data files).
+      If you moved the old directory out of the way, 
+      create the database installation (the working data files).
       To do this you must log in to your
       <productname>PostgreSQL</productname> superuser account. It will not
       work as root.