TWS SAP Task String: What does the - c parameter characterize?

Tivoli Workload Scheduler 8.6.0.2 I have reviewed all of the documentation I can find, official and non-official. When defining an SAP R/3 process chain task string, what does the -c flag do? https://tekslate.com/sap-apo-training/ For example, I have a task string that calls an APO process chain that looks like: vvvv -- / -job ChainName -i pchain_ -c C -flag DISABLE_PCHAINLOG ^^^^