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‘format.POSIXlt()’ behaved incorrectly in R 3.2.4. E.g. the output of ‘format(as.POSIXlt(paste0(1940:2000,"-01-01"), tz = "CET"), usetz = TRUE)’ ended in two ‘"CEST"’ time formats.
A typo in the Makefile for ‘src/extra/xz’ prevented builds of ‘liblzma.a’. (Notice that this will become unbundled in 3.3.0.)