cl-nsubst-if-not
cl-nsubst-if-not is an autoloaded compiled Lisp function in `cl-seq.el
'.
(cl-nsubst-if-not NEW PREDICATE TREE [KEYWORD VALUE]...)
Substitute NEW for elements not matching PREDICATE in TREE (destructively).
Any element of TREE which matches is changed to NEW (via a call to `setcar').
Keywords supported: :key