An azure-lb resource failed with "kill: Binary: arguments must be process or job IDs" in a Pacemaker cluster

Issue

• An ocf:heartbeat:azure-lb cluster resource failed its monitor operation and then fails the start operation during recovery. It logs messages similar to the following:

Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_monitor_10000:589:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: Binary: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_monitor_10000:589:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: file: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_monitor_10000:589:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: /var/run/nc_PF2_02.pid: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_monitor_10000:589:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: matches: arguments must be process or job IDs ]
...
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_stop_0:757:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: Binary: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_stop_0:757:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: file: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_stop_0:757:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: /var/run/nc_PF2_02.pid: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_stop_0:757:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: matches: arguments must be process or job IDs ]
Jun 23 11:03:48 node1 crmd[35614]:  notice: Result of stop operation for nc_PF2_02 on node1: 0 (ok)
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_start_0:777:stderr [ Ncat: bind to :::62502: Address already in use. QUITTING. ]
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_start_0:777:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: (818) - No such process ]
Jun 23 11:03:48 node1 crmd[35614]:  notice: Result of start operation for nc_PF2_02 on node1: 1 (unknown error)
Jun 23 11:03:48 node1 lrmd[35611]:  notice: nc_PF2_02_stop_0:889:stderr [ /usr/lib/ocf/resource.d/heartbeat/azure-lb: line 91: kill: (818) - No such process ]
Jun 23 11:03:48 node1 crmd[35614]:  notice: Result of stop operation for nc_PF2_02 on node1: 0 (ok)