/usr/libexec/clevis-luks-askpass: ncat: command not found

Issue

• clevis-systemd requires nc; however, actually uses ncat in /usr/libexec/clevis-luks-askpass

• Building RHEL 8 host using Network Bound Disk Encryption (NBDE) fails to boot and logs the following.

  dracut-initqueue[922]: /usr/libexec/clevis-luks-askpass: line 60: ncat: command not found
  

• With clevis module enabled, dracut produces following output but doese not fail

  # dracut -f
  dracut-install: ERROR: installing 'ncat'
  dracut: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.XXXXXX/initramfs -a /etc/services /usr/libexec/clevis-luks-askpass clevis-luks-common-functions head grep sed clevis-decrypt cryptsetup luksmeta clevis mktemp jose ncat
  
  # echo $?
  0