Fixed bug #51538 (strptime() buggy prior PHP 5.2.0)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@304520 c90b9560-bf6c-de11-be94-00142212c4b1

reference/datetime/functions/strptime.xml

@@ -178,6 +178,13 @@ Array
        on leap seconds</link>.
       </para>
      </note>
+     <note>
+      <para>
+       Prior to PHP 5.2.0, this function could return undefined behaviour. Notable 
+       the <literal>"tm_sec"</literal>, <literal>"tm_min"</literal> and <literal>"tm_hour"</literal> 
+       entries would return undefined values.
+      </para>
+     </note>
     </refsect1>
 
     <refsect1 role="seealso">