IMPORT: slz: mention the potential header in slz_finish()
There may be 2 or 10 bytes sent respectively for zlib and gzip.
This is libslz upstream commit de1cac155ac730ba0491a6c866a510760c01fa9b
diff --git a/include/import/slz.h b/include/import/slz.h
index d7d4863..d01599c 100644
--- a/include/import/slz.h
+++ b/include/import/slz.h
@@ -152,7 +152,9 @@
* possibly pending bits from the queue (up to 24 bits), rounding to the next
* byte, then 4 bytes for the CRC when doing zlib/gzip, then another 4 bytes
* for the input length for gzip. That may about to 4+4+4 = 12 bytes, that the
- * caller must ensure are available before calling the function.
+ * caller must ensure are available before calling the function. Note that if
+ * the initial header was never sent, it will be sent first as well (up to 10
+ * extra bytes).
*/
static inline int slz_finish(struct slz_stream *strm, void *buf)
{