ansi-color-map-update
ansi-color-map-update is a compiled Lisp function in `ansi-color.el
'.
(ansi-color-map-update SYMBOL VALUE)
Update `ansi-color-map'.
Whenever the vectors used to construct `ansi-color-map' are changed,
this function is called. Therefore this function is listed as the :set
property of `ansi-color-faces-vector' and `ansi-color-names-vector'.