Then I commented out the code that shows the grey lines and here you go, a list of packages ready for removal from the AUR (or that have the same name as a package from core or extra anyway): core, extra.
PS: Be careful, some packages in the list, such as darcs, might have a use and need to be renamed instead of deleted.
]]>To use it on Arch you will need the luajson package from the AUR.
EDIT : If the list from the example link is not complete, that's because the script is running
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