In the documentation for PostgreSQL, the configuration example (see code-listing 2.2) uses 9.0 in the paths. But the file it refers to is 8.4. In further steps, 9.0 is used, but if the person following the guide edits the 8.4 file, the settings will be ignored. Reproducible: Always Steps to Reproduce: 1. Open page and check documentation :)
Created attachment 286551 [details, diff] Patch to fix the issue Here is the patch fixing this.
Thanks for reporting. The version was indeed incorrect and has been fixed in CVS. Should show up in an hour or so on the site.