-/*
- * Acts on file number @p i from @p flist, whose name is @p fname.
- *
- * First fixes up permissions, then generates checksums for the file.
+/* Acts on flist->file's ndx'th item, whose name is fname. If a directory,
+ * make sure it exists, and has the right permissions/timestamp info. For
+ * all other non-regular files (symlinks, etc.) we create them here. For
+ * regular files that have changed, we try to find a basis file and then
+ * start sending checksums.