initramfs/cryptroot: missing /lib/cryptsetup/askpass

[Marcin Grącki]

bug in cryptsetup-luks-initramfs-1.1.2-2.i686
in some distros package cryptsetup contains util askpass

in /usr/share/initramfs-tools/hooks/cryptroot #484 someone commented line:
# copy_exec /lib/cryptsetup/askpass

/usr/share/initramfs-tools/scripts/local-top/cryptroot #215
  if [ -z "$cryptkeyscript" ]; then
   cryptkeyscript="/lib/cryptsetup/askpass"
   cryptkey="Enter passphrase to unlock the disk $cryptsource ($crypttarget): "
  fi

  if ! crypttarget="$crypttarget" cryptsource="$cryptsource" \
       $cryptkeyscript "$cryptkey" | $cryptcreate --key-file=- ; then
   message "cryptsetup: cryptsetup failed, bad password or options?"
   continue
  fi
^this fails at boot from initramfs image

for my needs I replaced cited section with $cryptcreate