Better document the data_string structure.

diff --git a/includes/tree.h b/includes/tree.h
index 065f8d939ac5400299e9480cb459543ea2ebde13..21f2ca106db21dcc8f365da7d93601fd2ad9ce84 100644 (file)
--- a/includes/tree.h
+++ b/includes/tree.h
@@ -51,7 +51,7 @@ struct buffer {
 struct data_string {
        struct buffer *buffer;
        unsigned char *data;
-       int len;
+       int len;        /* Does not include NUL terminator, if any. */
        int terminated;
 };