New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/45239#issuecomment-1649312440

Comment:
This is my env:
```sh
...
BASH_FUNC_cdw%%=() {  w=$(which "${1}" 2> /dev/null);
 if test -z "${w}"; then
 printf 'Error: %s could not be found.\n' "${1}" 2>&1;
 return 1;
 fi;
 cd $(dirname "${w}")
}
BASH_FUNC_welcome_prompt_handle%%=() {  clear;
 . ~/etc/sh/colors;
 . /etc/os-release;
 printf "\n  Welcome to ${abl}%s${ars}, ${abl}%s${ars}.\n" "${NAME}" "${USER}"
}
BASH_FUNC_filew%%=() {  w=$(which "${1}" 2> /dev/null);
 if test -z "${w}"; then
 printf 'Error: %s could not be found.\n' "${1}" 2>&1;
 return 1;
 fi;
 file "${w}"
}
...
```

Maybe we should use `compgen -v` here instead.