Add zfs-load-key.sh to .gitignore

The generated zfs-load-key.sh file should have been added to
the .gitignore file as part of commit 7da8f8d8.  And the
generated file should not be included in the repo.

Reviewed-by: Matthew Thode <prometheanfire@gentoo.org>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7134

contrib/dracut/90zfs/.gitignore

@@ -3,5 +3,6 @@ module-setup.sh
 mount-zfs.sh
 parse-zfs.sh
 zfs-generator.sh
-zfs-needshutdown.sh
 zfs-lib.sh
+zfs-load-key.sh
+zfs-needshutdown.sh

contrib/dracut/90zfs/zfs-load-key.sh

@@ -1,52 +0,0 @@
-#!/bin/bash
-
-# This script only gets executed on systemd systems, see mount-zfs.sh for non-systemd systems
-
-# import the libs now that we know the pool imported
-[ -f /lib/dracut-lib.sh ] && dracutlib=/lib/dracut-lib.sh
-[ -f /usr/lib/dracut/modules.d/99base/dracut-lib.sh ] && dracutlib=/usr/lib/dracut/modules.d/99base/dracut-lib.sh
-. "$dracutlib"
-
-# load the kernel command line vars
-[ -z "$root" ] && root=$(getarg root=)
-# If root is not ZFS= or zfs: or rootfstype is not zfs then we are not supposed to handle it.
-[ "${root##zfs:}" = "${root}" -a "${root##ZFS=}" = "${root}" -a "$rootfstype" != "zfs" ] && exit 0
-
-# There is a race between the zpool import and the pre-mount hooks, so we wait for a pool to be imported
-while true; do
-    zpool list -H | grep -q -v '^$' && break
-    [[ $(systemctl is-failed zfs-import-cache.service) == 'failed' ]] && exit 1
-    [[ $(systemctl is-failed zfs-import-scan.service) == 'failed' ]] && exit 1
-    sleep 0.1s
-done
-
-# run this after import as zfs-import-cache/scan service is confirmed good
-if [[ "${root}" = "zfs:AUTO" ]] ; then
-    root=$(zpool list -H -o bootfs | awk '$1 != "-" {print; exit}')
-else
-    root="${root##zfs:}"
-    root="${root##ZFS=}"
-fi
-
-# if pool encryption is active and the zfs command understands '-o encryption'
-if [[ $(zpool list -H -o feature@encryption $(echo "${root}" | awk -F\/ '{print $1}')) == 'active' ]]; then
-    # check if root dataset has encryption enabled
-    if $(zfs list -H -o encryption "${root}" | grep -q -v off); then
-        # figure out where the root dataset has its key, the keylocation should not be none
-        while true; do
-            if [[ $(zfs list -H -o keylocation "${root}") == 'none' ]]; then
-                root=$(echo -n "${root}" | awk 'BEGIN{FS=OFS="/"}{NF--; print}')
-                [[ "${root}" == '' ]] && exit 1
-            else
-                break
-            fi
-        done
-        # decrypt them
-        TRY_COUNT=5
-        while [ $TRY_COUNT != 0 ]; do
-            zfs load-key "$root" <<< $(systemd-ask-password "Encrypted ZFS password for ${root}: ")
-            [[ $? == 0 ]] && break
-            ((TRY_COUNT-=1))
-        done
-    fi
-fi