- * message digests have not yet been calculated and it is therefore known
- * whether such streams are already in @stream_list or in the WIM's lookup table
- * at all. If @lookup_table is non-NULL, then each stream in @stream_list that
- * has @unhashed set but not @unique_size set is checksummed immediately before
- * it would otherwise be read for writing in order to determine if it is
- * identical to another stream already being written or one that would be
- * filtered out of the output WIM using stream_filtered() with the context
- * @filter_ctx. Each such duplicate stream will be removed from @stream_list, its
- * reference count transfered to the pre-existing duplicate stream, its memory
- * freed, and will not be written. Alternatively, if a stream in @stream_list
- * is a duplicate with any stream in @lookup_table that has not been marked for
- * writing or would not be hard-filtered, it is freed and the pre-existing
- * duplicate is written instead, taking ownership of the reference count and
- * slot in the @lookup_table_list.
- *
- * Returns 0 if all streams were written successfully (or did not need to be
- * written); otherwise a non-zero error code.
+ * message digests have not yet been calculated. Such streams may or may not
+ * need to be written. If @lookup_table is non-NULL, then each stream in
+ * @stream_list that has @unhashed set but not @unique_size set is checksummed
+ * immediately before it would otherwise be read for writing in order to
+ * determine if it is identical to another stream already being written or one
+ * that would be filtered out of the output WIM using stream_filtered() with the
+ * context @filter_ctx. Each such duplicate stream will be removed from
+ * @stream_list, its reference count transfered to the pre-existing duplicate
+ * stream, its memory freed, and will not be written. Alternatively, if a
+ * stream in @stream_list is a duplicate with any stream in @lookup_table that
+ * has not been marked for writing or would not be hard-filtered, it is freed
+ * and the pre-existing duplicate is written instead, taking ownership of the
+ * reference count and slot in the @lookup_table_list.
+ *
+ * Returns 0 if every stream was either written successfully or did not need to
+ * be written; otherwise returns a non-zero error code.