Description:
The damonset had been renamed to collector in 5.x, the exclude_path should be updated accordingly.

$cat fluent.conf
@type tail
@id container-input
path "/var/log/containers/*.log"
exclude_path ["/var/log/containers/fluentd-*_openshift-logging_*.log", "/var/log/containers/elasticsearch-*_openshift-logging_*.log", "/var/log/containers/kibana-*_openshift-logging_*.log"]
pos_file "/var/lib/fluentd/pos/es-containers.log.pos"

Steps to Reproduce:
1. Deploy logging 5.3
2. oc extract cm/collector --confirm; cat fluent.conf |grep -A 5 container-input

Expected result:

exclude_path ["/var/log/containers/collector-*_openshift-logging_*.log", "/var/log/containers/elasticsearch-*_openshift-logging_*.log", "/var/log/containers/kibana-*_openshift-logging_*.log"]