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This commit refactors the setter in DelegatorsParam so that it uses a
more understandable code style.

Replacing the foreach with a single if statement which uses Array.every,
and then using Array.map as well as a prepared string to make the
paramValues for the generator function.
Reported-by: Akshay Karthik <akshay.karthik@gmail.com>
Signed-off-by: Mark Stenglein <mark@stengle.in>