install data/docbook since docbook-catalog-install.sh is called (noted by Andrew Chace)
--- a/plugins/sfe-unsupported.sh Wed Jan 26 16:53:37 2011 +0100
+++ b/plugins/sfe-unsupported.sh Sun Feb 06 10:56:10 2011 +0100
@@ -2,6 +2,7 @@
ADDITIONAL_PKGS='
developer/versioning/subversion
service/postrun
+data/docbook
'
pkg install $ADDITIONAL_PKGS