Fix wrong directive reference
-rw-r--r-- .cvsignore
-rw-r--r-- .gitignore
-rw-r--r-- Makefile
-rw-r--r-- README
-rw-r--r-- TODO
-rw-r--r-- WRITING
drwxr-xr-x bin
drwxr-xr-x docbook
drwxr-xr-x files
drwxr-xr-x glossary
drwxr-xr-x guides
drwxr-xr-x howtos
drwxr-xr-x images
drwxr-xr-x pending
drwxr-xr-x refs
drwxr-xr-x search
drwxr-xr-x whatsnew