I first noticed this on the dev-lang/icc-6.0.ebuild . If you run `lintool icc-6.0.ebuild` it complains about 1 USE error. If you edit the ebuild and change the one occurent of "use" to something else the error goes away. I'll admit it's diffcult to dectect if "use" it a command or a string literal and here is the best/eaiest case I can think of off the top of my head. When a use is found, take the substring before the "use", remove any esacped quotes (\"). If there is an even number of quotes then it is a command. If there is an odd number you need to count the number of back ticks "`". If there is an odd number of back ticks "`" then it is a comand. You should probably account for single quotes but I think that will complicate the code a lot more. This won't prevent all false errors but it's easier than writing a shell interpeter which would be needed to do it right.
Fixed for now. Not all false positives have been removed. I suggest we simply rewrite the sentences slightly for the rest ;P
