Fix "risky-shell-pipe" violations.

Adding the missing "pipefail" option.
Fixing 1 violation:
  risky-shell-pipe: Shells that use pipes should set the pipefail option.
Some code reformatting.

Signed-off-by: Pavel Bar <pbar@redhat.com>
Bug-Url: https://bugzilla.redhat.com/2097332

automation/build.sh

@@ -69,7 +69,7 @@ cd "$COLLECTION_DIR"
 ansible-test sanity
 antsibull-changelog lint -v
 ansible-lint roles/* --exclude roles/hosted_engine_setup --exclude roles/disaster_recovery --exclude roles/remove_stale_lun -x experimental
-ansible-lint -x unnamed-task,fqcn-builtins,no-changed-when,risky-shell-pipe,ignore-errors roles/disaster_recovery roles/remove_stale_lun
+ansible-lint -x unnamed-task,fqcn-builtins,no-changed-when,ignore-errors roles/disaster_recovery roles/remove_stale_lun
 
 cd "$ROOT_PATH"
 

roles/remove_stale_lun/tasks/remove_mpath_device.yml

@@ -3,7 +3,10 @@
     lun_wwid: "{{ lun_wwid | mandatory }}"
 
 - name: Get underlying disks (paths) for a multipath device(s) and turn them into a list.
-  ansible.builtin.shell: 'for dev in {{ lun_wwid }}; do dmsetup deps -o devname $dev | cut -f 2 |cut -c 3- |tr -d "()"|tr "\r\n" " "; done'
+  ansible.builtin.shell: |
+    for dev in {{ lun_wwid }}; do
+      set -euo pipefail && dmsetup deps -o devname $dev | cut -f 2 | cut -c 3- | tr -d "()" | tr "\r\n" " ";
+    done
   register: disks
   check_mode: "no"