🚀 go-pugleaf

I would like to point out two minor typo's in Wirth's introduction
to Oberon that lead to humorous results.  On page 3 he gives statistics
on code size for the parts of his Oberon compiler.  The correct table
should be:

                   length of          length of     time of self
                source program      compiled code   compilation
----------------------------------------------------------------
                lines  characters       bytes         seconds
----------------------------------------------------------------
Parser           1116       36719        9928           11.53
Scanner           346        9863        3388            3.80
Import/Export     514       18386        4668            5.25
Code generator   1963       65901       21636           21.02
                ------     -------     -------         -------
Total            3939      130869       39620           41.60

Notice that only two digits have changed columns, but now the columns
add up correctly, and the statistics make more sense.