* unlinked by duct
* site.name_duct.defer 431'd articles, still being written,
* created, written, used by duct
- * site.name_backlog.lock lock taken out by innxmit wrapper
- * holder and its child are "xmit"
+ *
* site.name_backlog_<date>.<inum>
* 431'd articles, ready for innxmit or duct
* created (link/mv) by duct
* anything the sysadmin likes (eg, feed files
* from old feeds to be merged into this one)
* created (link/mv) by admin
+ * may be symlinks (in which case links
+ * may be written through, but only links
+ * will be removed.
+ *
+ * It is safe to remove backlog files manually,
+ * if it's desired to throw away the backlog.
*
* Backlog files are also processed by innduct. We find the oldest
* backlog file which is at least a certain amount old, and feed it