Small clean-up for shell kill command

* Fixed syntax error
* Improved return value logic

Change-Id: I758a7bdecb8728814823d77f7360fcc8dc03c176
Small documentation fix

* Fixed component origin parameters list
* Fixed small typo

Change-Id: Ifdb49627e7f4f8bf0a4165c5dac6d5a2c139ee8f
Merge "Small clean-up for shell kill command"