No great names to suggest, vkon, other than something quite obvious like
 
      Tk::Getopt::Util.

But an RFC, with code (scrubbed for any personal data, naturally), may produce suggestions from those of great wisdom and help you smooth any rough spots you would like to polish.

...and speaking of "wisdom," check out zentara's response to the OP. I'm not well qualified to evaluate the recommendations, but I am convinced that zentara's observations are noteworthy.