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$ perl -MEncode -le'print length encode "utf8", decode "UTF-16le", "\x +FE\x00"' 2
$ perl -MDevel::Peek -MEncode -le'Dump decode "UTF-16le", "\xFE\x00"' ... PV = 0x8172e78 "\303\276"\0 [UTF8 "\x{fe}"] CUR = 2 ...