Update 24 hours/1 day distinction in release notes.

doc/src/sgml/release.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.391 2005/10/15 20:12:32 neilc Exp $
+$PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.392 2005/10/25 15:12:22 momjian Exp $
 
 Typical markup:
 
@@ -1211,13 +1211,13 @@ psql -t -f fixseq.sql db1 | psql -e db1
         Glaesemann)
        </para>
        <para>
-        Days that contain a daylight savings time adjustment are not 24
-        hours, but typically 23 or 25 hours. This change allows days
-        (not fixed 24-hour periods) to be added to dates who's result
-        includes a daylight savings time adjustment period. Therefore,
-        while in previous releases <literal>1 day</> and <literal>24
-        hours</> were interchangeable interval values, in this release
-        they are treated differently, e.g.
+        Dates that contain a daylight savings time adjustment are not 24
+        hours, but typically 23 or 25 hours. This change allows numeric days
+        (not fixed 24-hour periods) to be added to dates which include
+        a daylight savings time adjustment period. Therefore, while in 
+        previous releases <literal>1 day</> and <literal>24 hours</> were 
+        interchangeable interval values, in this release they are treated 
+        differently, e.g.
         <programlisting>
          '2005-05-03 00:00:00 EST' + '1 day' = '2005-05-04 00:00:00-04'
          '2005-05-03 00:00:00 EST' + '24 hours' = '2005-05-04 01:00:00-04'