From the man-page: -8 Request 8-bit operation. This causes an attempt to negotiate the TELNET BINARY option for both input and output. By default telnet is not 8-bit clean.
If I use the -8 option to telnet, everything works perfectly, including the 東京 and ル examples (“ is another interesting test). This is a non-bug, as far as I can see. cheers, -- Wessel Dankers
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