[LU-20196] Add projid option to checkstat

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: Sohei Koyama
• Reporter: Sohei Koyama

Description

Add a "-j projid" option that reads the project ID via FS_IOC_FSGETXATTR, so a single CHECKSTAT invocation can verify UID/GID/PROJID together.  "-p" is already used for permission, so "-j" (for "project") is used.