echo does not print emoji given escape sequence \xf0\x9f\x98\x82 #6741
Description
How to reproduce
cargo run -p uu_echo -- -e '\xf0\x9f\x98\x82'gives �.
Expected behavior
Under Ubuntu 22.04, with /bin/echo --version:
echo (GNU coreutils) 8.32
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Written by Brian Fox and Chet Ramey.
the output is 😂, given command /bin/echo -e '\xf0\x9f\x98\x82'.