[Patch] A bit of linting

I'm attaching a patch which adds a "lint" target to the makefile (running 
lclint with some very lenient settings) and fixes some of the things it 
was griping about.

The changes are all pretty trivial, and fall into the following categories:

   - handle return values which were being ignored (either casting to void 
     or doing something with them)
   - cast IVs to (unsigned int) when printfing them with "%x".
   - remove unused variables  (only in one function)
   - return a value in some places where there was a void return but the 
     function had a return type.

--Josh

-- 
Josh Wilmes  (josh@hitchhiker.org) | http://www.hitchhiker.org

• [Patch] A bit of linting by Josh Wilmes
• Re: [Patch] A bit of linting by Andy Dougherty