(ITS#5745) slapcat doesn't return correct error status for bdb fatal error

Full_Name: Guillaume Rousse Version: 2.4.12 OS: URL: Submission from: (NULL) (193.55.250.67)

[root@etoile ~]# slapcat -b dc=msr-inria,dc=inria,dc=fr ... bdb(dc=msr-inria,dc=inria,dc=fr): pthread lock failed: Invalid argument bdb(dc=msr-inria,dc=inria,dc=fr): PANIC: Invalid argument bdb(dc=msr-inria,dc=inria,dc=fr): PANIC: DB_RUNRECOVERY: Fatal error, run database recovery bdb(dc=msr-inria,dc=inria,dc=fr): PANIC: fatal region error detected; run recovery bdb_db_close: database "dc=msr-inria,dc=inria,dc=fr": close failed: DB_RUNRECOVERY: Fatal error, run database recovery (-30975) [root@etoile ~]# echo $? 0

It makes a bit difficult to know if slapcat-based backup were successful.