srm: Include failed or unprocessed surls in list response

Otherwise the status of such files isn't reported back to the client.

Target: trunk
Require-notes: yes
Require-book: no
Acked-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Patch: http://rb.dcache.org/r/6673

modules/srm-server/src/main/java/org/dcache/srm/request/LsFileRequest.java

@@ -299,7 +299,13 @@ public long extendLifetime(long newLifetime) throws SRMException {
         }
 
         public TMetaDataPathDetail getMetaDataPathDetail() {
+            if (metaDataPathDetail != null) {
                 return metaDataPathDetail;
+            }
+            TMetaDataPathDetail detail =  new TMetaDataPathDetail();
+            detail.setPath(getPath(surl));
+            detail.setStatus(getReturnStatus());
+            return detail;
         }
 
         public final TMetaDataPathDetail getMetaDataPathDetail(URI surl,