pool: Fixing rep ls output, RT 8203

Output of rep ls <pnfsID that exists> <pnfsID that does not exist> <another pnfsID that exists> would show:
<pnfsID that exists> <C-------X--L(0)[0]> 2255071 si={test:disk}
CacheException(rc=10007;msg=Entry not in repository : <pnfsID that does not exist would show>)
<another pnfsID that exists> <C-------X--L(0)[0]> 2255071 si={test:disk}

Now it show this:

[wla000617wpa.desy.de] (pool_write) admin > rep ls 0000B27FEE232A7840A7ADCBEBEE57886730 00000DC04577984D4FCD9610F44B19CF3BD7 00000DC04577984D4FCD9610F44B19CF3B23 00000DC04577984D4FCD9610F44B19CF3B45
0000B27FEE232A7840A7ADCBEBEE57886730 <C-------X--L(0)[0]> 2255071 si={test:disk}
00000DC04577984D4FCD9610F44B19CF3BD7 <C-------X--L(0)[0]> 10002434 si={test:disk}
CacheException(rc=10007;msg=Entry not in repository : 00000DC04577984D4FCD9610F44B19CF3B23)
CacheException(rc=10007;msg=Entry not in repository : 00000DC04577984D4FCD9610F44B19CF3B45)

Ticket: 8203
Acked-by: Gerd
Target: trunk
Require-book: no
Require-notes: yes