Patch to tidy up wget use, and add return=4 when 404's are s…

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M\Philip Hands
|MOtavio Salvador
M\Frans Pop
|MPhilip Hands
M\Philip Hands
|MColin Watson
|MPhilip Hands
M\Frans Pop
|MFrans Pop
MPhilip Hands
M\Frans Pop
M|Frans Pop
|MPhilip Hands
|MFrans Pop
MPhilip Hands
MFrans Pop