[LU-15996] change the output of grace from "none" to "expired" when grace is expired

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Hongchao Zhang
• Reporter: Hongchao Zhang

Description

Currently, if the quota is over soft limit and the grace time is expired, the grace output
in "lfs quota" is "none", which is not very user friendly and is better to change to "expired"