Change history of Tcl Tutorial Lesson 31

Rev	Date	Modified by	Minor edit	Spam	WikiText	Revert to
5	2018-12-17 18:30:15	arjen	yes	no	5	5
4	2018-12-08 12:45:09	arjen	no	no	4	4
3	2017-09-14 10:57:51	arjen	no	no	3	3
2	2017-06-23 19:20:00	arjen	no	no	2	2
1	2017-06-23 13:53:26	arjen	no	no	1	1
0	2017-06-23 13:50:21	arjen	no	no	0	0