mh-invisible-headers
mh-invisible-headers is a compiled Lisp function in `mh-e.el
'.
(mh-invisible-headers)
Make or remake the variable `mh-invisible-header-fields-compiled'.
Done using `mh-invisible-header-fields-internal' as input, from
which entries from `mh-invisible-header-fields-default' are
removed and entries from `mh-invisible-header-fields' are added.