Prompt override program and dates

I have a prompt override program, returning a date to a command. The
command parameter for the date is defined as: 
PARM KWD(DATE) TYPE(*DATE) MIN(1) PROMPT('Date')

The POP works fine, except that I must return the date inside quote
marks: '09/15/1998'. Subsequently, the quote marks appear in the
command's input field.

I would like to return the date without quote marks, so it appears as 
Date . . . 09/15/1998   instead of
Date . . . '09/15/1998'

I tried using EXPR(*YES) on the DATE keyword, but that isn't allowed. 

Are there any suggestions?

Thank you,
Loyd Goodbar

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