bug (at_cli): update verb ignores -p and defaults to public!

[XavierChanth]

Describe the bug

trunk on  trunk [!?]
N ➜ at_cli -a -f ~/.atsign/keys/@snooker25_key.atKeys --atsign @snooker25 -k test1.testingdemo -p false -v update --value "foobar"
146

trunk on  trunk [!?]
I ➜ at_cli -a -f ~/.atsign/keys/@snooker25_key.atKeys --atsign @snooker25 -k test2.testingdemo -p true -v update --value "foobar"
147

trunk on  trunk [!?]
I ➜ at_cli -a -f ~/.atsign/keys/@snooker25_key.atKeys --atsign @snooker25 -v scan \
-r ".testingdemo"
["public:test1.testingdemo@snooker25","public:test2.testingdemo@snooker25"]

Steps to reproduce

1. First I '...'
2. Then I '...'
3. And then '...'

Expected behavior

Private values stay private!

Screenshots

No response

Smartphones

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Were you using an atApplication when the bug was found?

No response

Additional context

No response

[XavierChanth]

nvm! -p is a flag now, we need to update docs to reflect this!