fixed bug with PPID of parent not being set on first process list scan pass.

this caused htop to show processes as if freebsd kernel was their parent.
on next pass reparenting code took chance to run, and that caused process to jump around.
this fixed behaviour should be the correct one

freebsd/FreeBSDProcessList.c

@@ -441,6 +441,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
            fp->kernel = 1;
          else
            fp->kernel = 0;
+         proc->ppid = kproc->ki_ppid;
          proc->tpgid = kproc->ki_tpgid;
          proc->tgid = kproc->ki_pid;
          proc->session = kproc->ki_sid;