emacs - How to make describe-function "C-h f" case-insensitive by default -

emacs - How to make describe-function "C-h f" case-insensitive by default -

when searching function name partly remember, utilize c-h f phone call describe-function, come in *part-of-function-name, , nail tab. realize search not case-insensitive.

for example:

c-h f info tab

lists functions starting info, doesn't include starting info, whereas

c-h f info tab

lists functions starting info, doesn't include starting info.

another example:

c-h f *nfc tab

gives me *nfc [no match], whereas

c-h f *nfc tab

gives me ucs-normalize-hfs-nfc-region.

how can create describe-function case-insensitive default, using configuration in init.el file?

(setq completion-ignore-case t) should want, tho globally rather c-h f.

emacs case-insensitive