Catch some stray references to .htm files.

doc/src/sgml/docguide.sgml

-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/docguide.sgml,v 1.30 2000/12/22 18:57:49 petere Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/docguide.sgml,v 1.31 2001/02/17 16:52:53 tgl Exp $ -->
 
 <appendix label="DG2" id="docguide">
  <title>Documentation</title>
@@ -906,8 +906,8 @@ exit
     <filename>src/test/regress/README</filename> is not fully
     automated.  After building the <acronym>HTML</acronym> version of
     the <citetitle>Administrator's Guide</citetitle>, convert the
-    resulting files <filename>regress.htm</filename> and
-    <filename>regress-platform.htm</filename> to text, using
+    resulting files <filename>regress.html</filename> and
+    <filename>regress-platform.html</filename> to text, using
     <productname>Netscape</productname>.  Then paste the text files
     together and edit them to taste (e.g., remove the navigation
     bars, remove the references to other chapters).

doc/src/sgml/installation.sgml

-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/installation.sgml,v 1.36 2001/02/10 18:24:14 petere Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/installation.sgml,v 1.37 2001/02/17 16:52:53 tgl Exp $ -->
 
 <chapter id="installation">
  <title><![%flattext-install-include[<productname>PostgreSQL</>]]> Installation Instructions</title>
@@ -1048,7 +1048,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
       The <citetitle>Tutorial</> should be your first reading if you
       are completely new to <acronym>SQL</> databases. It should have
       been installed at
-      <filename>/usr/local/pgsql/doc/html/tutorial.htm</> unless you
+      <filename>/usr/local/pgsql/doc/html/tutorial.html</> unless you
       changed the installation directories.
      </para>
     </listitem>
@@ -1059,7 +1059,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
       proceed with the <citetitle>Administrator's Guide</citetitle>,
       which contains information about how to set up the database
       server, database users, and authentication. It can be found at
-      <filename>/usr/local/pgsql/doc/html/admin.htm</>.
+      <filename>/usr/local/pgsql/doc/html/admin.html</>.
      </para>
     </listitem>