Small error in chapter 4

[ailnlv]

In the 'Homemade task queues' section, the book claims that by running

python web2py.py -S app -M -R applications/app/private/myscript.py -A a b c

you get the command line arguments 'a', 'b' and 'c':

sys.args=['a','b','c']

It should say instead

sys.argv=['applications/app/private/myscript.py','a','b','c']

There is no args in sys.

[timrichardson]

fix in PR