Mafft运行错误：line 2576: /dev/stderr

This error occurs when running mafft after switching user by the su command.
Workaround is:

% mafft --progress /dev/tty (other options) input > output

or

% mafft --quiet (other options) input > output

参考资料：https://mafft.cbrc.jp/alignment/software/stderr.html