kvm_getargv
argv = kvm_getargv(kd, kp, termwidth);
char **kvm_getargv(kvm_t *, const struct kinfo_proc *, int);
if ((pargv = kvm_getargv(kd, kp, 0)) == NULL) {
if ((argv = kvm_getargv(kd, kp, 0)) == NULL)
argv = kvm_getargv(kd, kp, argwidth+60); /* +60 for ftpd snip */