iwodstart -k

System

I'm using iwodstart -k to invoke Opendeploy DNR deployment which deploys some static files to webserver and some DCRs to the database. I also invoke an e-mail script in the DNR configuration file which sends e-mail notification to the Content Owner with some Workflow Log information. I want to pass this Workflow Log information to the DNR Configuration file as a parameter. The command looks something like this:
iwodstart -k filelist=/tmp/xyz -k history=$history dcr=/templatedata/XYZ/123.dcr workarea = /default/main/xyz/wa..
But when i try to pass a long string as history parameter Opendeploy ignores the whole string. Is there any limitation on the length of the Parameter for iwodstart -k?
I can get the workflow history information from the database by only passing the history-id as parameter to iwodstart. But i dont want to query the database.
Any help in this regard is highly appreciated.