[LU-17050] Test Kerberos env in sanity-krb5

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.5
• Affects Version/s: Lustre 2.16.0
• Labels: kerberos patch
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

Test Kerberos environnement is sane before trying to launch sanity-krb5 tests.