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040000 tree 9a2edd29488212279d096d5b1ff7793b75020567	bsd
040000 tree f43131931913e1868c8956c5f1052f7903dc4c11	linux
040000 tree a04e17fb8e4290bc5dfe2a6344316ba35cab74cc	posix
040000 tree 94a4a381adfc788a42e1d156f79453b82aa95c0a	windows