[LTP] [PATCH V2 9/9] ftrace_stress: cleanup and use ltp API

[Cyril Hrubis]

Hi!
> After i changing it to kill directly and retest it, i hit err message:
> 
> ftrace_trace_pipe.sh: line 18: kill: SIGKILL: invalid signal specification

That is because POSIX only accepts symbolic names without the SIG prefix
while kill from procps works with both.

The correct way to send SIGKILL is 'kill -KILL $pid'.

-- 
Cyril Hrubis
chrubis@suse.cz