example on DMD 2.0 home page does NOT compile on linux

[mike]

I have just used the ubuntu package to install DMD64 D Compiler v2.054 on my
mint linux i7 laptop.
when I copy and paste the example from http://www.digitalmars.com/d/2.0/index.html
I get ;
mwynn at kraken ~/projects/my_lang/Dsrc $ dmd main.d
main.d(21): Error: constructor main.CmdLin.this (int argc, string argv) is not
callable using argument types (ulong,string)
main.d(21): Error: cannot implicitly convert expression (argc) of type ulong
to int
mwynn at kraken ~/projects/my_lang/Dsrc $ dmd
DMD64 D Compiler v2.054
Copyright (c) 1999-2011 by Digital Mars written by Walter Bright
Documentation: http://www.digitalmars.com/d/2.0/index.html
Usage:

while I'm sure that I can fix is I think it's a little poor that the stock
examples on your website do not compile out of the tin.
I have attached the file I tried to compile just incase my cut'n'paste has errors.
begin 644 main.d
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-:7@["B`@("!]"GT*"@``
`
end