Description of problem:

Some (not all) messages to kibana are not parsed correctly. 

Version-Release number of selected component (if applicable):

OCP 4.10

How reproducible:

Reproducable for this specific messages. 

Steps to Reproduce:

1. Enable JSON parsing via the ClusterForwarder
2. Create the example pod via the Openshift webUI and add the logFormat: json
3. oc rsh to the example pod
4. Create a file /tmp/badlog.json and add one of the attached logs
5. Run cat /tmp/badlog.json > /proc/1/fd/1

Actual results:

Messages is not parsed.

Expected results:

Parsed fields of the message.

Additional info: