## Function: COMMON-LISP:NSUBSTITUTE
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> Return a sequence of the same kind as SEQUENCE with the same elements
> except that all elements equal to OLD are replaced with NEW. SEQUENCE
> may be destructively modified.

### Lambda list
```cl
(sb-impl::new sb-impl::old sequence &rest sb-impl::args &key sb-impl::from-end
 sb-impl::test sb-impl::test-not sb-impl::end count sb-impl::key sb-impl::start)
```