sap_swpm: Improve the fail message for virt hostname resolution

Signed-off-by: Bernd Finger <[email protected]>

roles/sap_swpm/tasks/pre_install/assert_hostname_resolution_for_ha.yml

@@ -39,7 +39,7 @@
 - name: SAP SWPM Pre Install - HA settings - Assert that sap_swpm_virtual_hostname can be resolved
   ansible.builtin.assert:
     that: __sap_swpm_fact_virtual_ip is defined and __sap_swpm_fact_virtual_ip | length > 0
-    fail_msg: "FAIL: 'sap_swpm_virtual_hostname' is not defined or cannot be resolved correctly!"
+    fail_msg: "FAIL: 'sap_swpm_virtual_hostname' is not defined, cannot be resolved, or has multiple entries in /etc/hosts!"
     success_msg: "PASS: {{ sap_swpm_virtual_hostname }} can be resolved."
 
 - name: SAP SWPM Pre Install - HA settings - Assert that sap_swpm_fact_virtual_ip is part of ansible_all_ipv4_addresses