[racket] small fun racket tool coding project for someone

From: Neil Van Dyke (neil at neilvandyke.org)
Date: Thu Oct 14 10:59:18 EDT 2010

Robby Findler wrote at 10/14/2010 10:53 AM:
> This would be nice to happen, but one warning: Check Syntax's red is not foolproof.

I have noticed that on a few occasions with macros, but it's more than 
reliable enough for this purpose.  At least, with this particular code base.

Adding in any erroneously removed "require"s manually is pretty easy, 
since identifiers are almost always unique globally.  Cut a one-day job 
down to 15 minutes. :)

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