Kills the process.
Where possible, sends the
signal to the process. This includes
Linux and OS X. The default signal is ProcessSignal.sigterm
which will normally terminate the process.
On platforms without signal support, including Windows, the call
just terminates the process in a platform specific way, and the
signal parameter is ignored.
true if the signal is successfully delivered to the
process. Otherwise the signal could not be sent, usually meaning
that the process is already dead.
bool kill([ProcessSignal signal = ProcessSignal.sigterm]);