(svn r14514) -Codechange: use 'size' instead of 'length' for querystring and textbuf, explicitly say it includes the terminating zero

-Fix: one couldn't rename things with too long default/automatic name
-Fix: buffer overflow in console when too long (1024 bytes) command was entered

src/network/network_chat_gui.cpp

@@ -374,11 +374,11 @@ struct NetworkChatWindow : public QueryStringBaseWindow {
 					/* If we are completing at the begin of the line, skip the ': ' we added */
 					if (tb_buf == pre_buf) {
 						offset = 0;
-						length = tb->length - 2;
+						length = (tb->size - 1) - 2;
 					} else {
 						/* Else, find the place we are completing at */
 						offset = strlen(pre_buf) + 1;
-						length = tb->length - offset;
+						length = (tb->size - 1) - offset;
 					}
 
 					/* Compare if we have a match */