nordugrid-queues not appearing after maxcputime/maxwalltime patch

Link to Bugzilla ticket

BUGZ-3569

Description

ARC0ClusterInfo.pm generates an invalid field when rendering the numbers

See excerpt from Jens in 'bdii-update.log':

[2019-02-04 08:45:47] [InfosysHelper] [INFO] [2733] Notification received from A-REX's infoprovider
[2019-02-04 08:45:47] [InfosysHelper] [VERBOSE] [2733] Using ldif generator script: /var/run/arc/infosys//ldif-provider.sh
[2019-02-04 08:45:48] [InfosysHelper] [VERBOSE] [2933] New fifo created: /var/run/arc/infosys//ldif-provider.fifo
[2019-02-04 08:45:48] [InfosysHelper] [INFO] [2933] Start waiting for notification from A-REX's infoprovider
[2019-02-04 08:46:52] [InfosysHelper] [INFO] [2933] Notification received from A-REX's infoprovider
[2019-02-04 08:46:52] [InfosysHelper] [VERBOSE] [2933] Using ldif generator script: /var/run/arc/infosys//ldif-provider.sh
2019-02-04 08:46:52,492: [WARNING] ldap_add: Invalid syntax (21)
2019-02-04 08:46:52,492: [WARNING] additional info: nordugrid-queue-maxcputime: value #0 invalid per syntax
2019-02-04 08:46:52,492: [WARNING] ldap_add: No such object (32)
2019-02-04 08:46:52,493: [WARNING] matched DN: nordugrid-cluster-name=atlas.bluegrass.nsc.liu.se,Mds-Vo-name=local,o=grid
2019-02-04 08:46:52,493: [WARNING] ldap_add: No such object (32)