Backed out changeset 2ab464771b7d15c60014996d2853efc92cdb8465 - it always runs chmod - uses chmod in an unsafe way - if somebody does a clone of a repo, runs 'make tests', everything is fine, so he can assume the original repo is fine, too, but it is not.

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# should print nothing

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# should print ? b/x

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? b/x

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# should print A b/x

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A b/x

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# should forget b/x

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forgetting b/x

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# should print nothing