Fix another Start-Process test
Fix another Start-Process test

This one would sometimes just fail to stop the process... which is a probably a bug to be fixed.

KarolKaczmarek/PowerShell,jsoref/PowerShell,jsoref/PowerShell,JamesWTruher/PowerShell-1,PaulHigin/PowerShell,PaulHigin/PowerShell,KarolKaczmarek/PowerShell,daxian-dbw/PowerShell,TravisEz13/PowerShell,bingbing8/PowerShell,kmosher/PowerShell,bmanikm/PowerShell,daxian-dbw/PowerShell,bingbing8/PowerShell,KarolKaczmarek/PowerShell,kmosher/PowerShell,bmanikm/PowerShell,bmanikm/PowerShell,TravisEz13/PowerShell,KarolKaczmarek/PowerShell,JamesWTruher/PowerShell-1,bingbing8/PowerShell,kmosher/PowerShell,jsoref/PowerShell,JamesWTruher/PowerShell-1,bmanikm/PowerShell,daxian-dbw/PowerShell,bingbing8/PowerShell,KarolKaczmarek/PowerShell,daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,bmanikm/PowerShell,kmosher/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell,PaulHigin/PowerShell,TravisEz13/PowerShell,jsoref/PowerShell,kmosher/PowerShell,bingbing8/PowerShell,jsoref/PowerShell