[LU-9710] adjust barrier_stat input and output format

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.1, Lustre 2.11.0
• Affects Version/s: Lustre 2.10.0
• Severity: 3
• Assignee: nasf (Inactive)
• Reporter: nasf (Inactive)

Description

The input will be:
lctl barrier_stat [--state|-s] [--timeout|-t] <fsname>

The output will be:
state: xxx
timeout: nnn seconds