You need to line break the events into individual events. This can be done either on HF or on indexers.
Below is the document explaining how to enable event line breaking on Splunk,
https://docs.splunk.com/Documentation/Splunk/7.1.1/Data/Configureeventlinebreaking
Basically Splunk auto line breaks based on timestamp value. But in your case as event doesn't start with timestamp, you need to explicitly specify line breaking configuration.
You can try below configuration,
props.conf
[]
SHOULD_LINEMERGE=true
BREAK_ONLY_BEFORE = ^[catalina-exec-
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