* lisp/gnus/registry.el (registry-db): Don't oset-default an instance slot.

* lisp/gnus/registry.el (registry-db): Don't oset-default an instance slot.

* lisp/gnus/gnus-registry.el (gnus-registry-handle-action)
(gnus-registry-post-process-groups): Don't add-to-list on a local var.
(gnus-registry-keywords): Make it do something.
(gnus-registry-import-eld): Remove unused var `new-entry'.
(gnus-registry-action): Remove unused var `to-name'.
(gnus-registry-make-db): Prefer `make-instance' to avoid
compiler warnings.
(gnus-registry-load, gnus-registry-fixup-registry): Avoid `oset'.