ext/redcarpet/buffer.c in redcarpet-3.1.1 vs ext/redcarpet/buffer.c in redcarpet-3.1.2

@@ -92,10 +92,10 @@
 	return ret;
 }
 
 /* bufnullterm: NULL-termination of the string array */
 const char *
-bufcstr(const struct buf *buf)
+bufcstr(struct buf *buf)
 {
 	assert(buf && buf->unit);
 
 	if (buf->size < buf->asize && buf->data[buf->size] == 0)
 		return (char *)buf->data;