pub fn restore_params(restorelist: Vec<param>, removelist: Vec<String>)Expand description
Port of restore_params(LinkList restorelist, LinkList removelist)
from Src/exec.c:4464-4528. After the builtin/shfunc returns,
unset every name in removelist, then for each saved param in
restorelist re-install its values (PM_SPECIAL go through gsu
setfn; regular params re-enter paramtab as-is).