[slurm-users] seff in slurm-23.02

[David Gauchard]

Hello,

slurm-23.02 on ubuntu-20.04,

seff is not working anymore:

```
# ./seff 4911385
Use of uninitialized value $FindBin::Bin in concatenation (.) or string at ./seff line 11.
Name "FindBin::Bin" used only once: possible typo at ./seff line 11, <DATA> line 602.
perl: error: slurm_persist_conn_open: Something happened with the receiving/processing of the persistent connection init message to localhost:6819: Failed to unpack
SLURM_PERSIST_INIT message
perl: error: Sending PersistInit msg: Message receive failure
Use of uninitialized value in subroutine entry at ./seff line 58, <DATA> line 602.
perl: error: [...]
```


while using https://github.com/SchedMD/slurm/blob/ce7d569807c495516ebfa6fcef25ad36ccc76827/contribs/seff/seff#LL19C3-L19C124 :

```
# sacct -P -n -a --format JobID,User,Group,State,Cluster,AllocCPUS,REQMEM,TotalCPU,Elapsed,MaxRSS,ExitCode,NNodes,NTasks -j 4911385
4911385|user|part|FAILED|hpc|1|2000M|00:23.041|00:00:31||0:9|1|
4911385.batch|||CANCELLED by 0|hpc|1||00:23.041|00:00:31|5936692K|0:9|1|1
```

I wonder whether this is an installation error and contrib/seff is working
for other 23.02 users.

Thanks