While updating the french translation of the latest releases, I stumbled upon a small issue on the config.sgml file.
It talks about unix_socket_directories whereas this parameter only appears with the 9.3 release. It should probably be replaced with unix_socket_directory for all releases where this has been commited (8.4 to 9.2). The patch attached does this. It applies cleanly on all releases (with a hunk though).
