Refer to GUC variables using <xref> tags rather than <varname> tags,

Neil Conway <neilc@samurai.com>

Commit: 80ec228389ee0205e9a4e2e1da1c63511e68973f
Author: Neil Conway <neilc@samurai.com>
Date: 2004-03-09T16:57:47Z
Releases: 8.0.0
Refer to GUC variables using <xref> tags rather than <varname> tags,
where appropriate. Add "id" and "xreflabel" tags to the descriptions
of the GUC variables to facilitate this. Also make a few minor docs
cleanups.

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