If this is t, the
function
argument to deliver is used as the application startup function.
If this is nil, no application startup function is called when the delivered image is started up.
The image exits immediately upon startup when :run-it is nil. Any :call-count report requested is still generated on exit.
This keyword can be useful if you want to look at the symbols in the image (with the keyword :call-count) but cannot you actually run the application -- for example because the application links up to a database, but the database has not been started up. In such cases, set it to nil.
LispWorks Delivery User Guide - 15 Feb 2015