[SHR] timezone broken again

[Mike Montour]

Michael 'Mickey' Lauer wrote:
> AT%CTVZ=1 just enables the unsolicited result code. There is no way to 
> actually _query_ the time from the network.

I don't know what method it uses but my Nokia 3500 phone gets the 
current time+date automatically (operator is Fido in Canada). I've 
tested this by manually setting an incorrect value and then 
power-cycling the phone, and it goes back to the correct time as soon as 
it boots up.

I did a quick test with 'mickeyterm' on my Freerunner and I haven't seen 
any %CTZV messages yet.