Allow null (empty) assignment words
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@ -168,7 +168,7 @@ _redir_or_assign_word () {
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_part+="|$_arithmetic_eval"
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_part+="|$_process_substition"
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_part+="|$_escaped_char"
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declare -r _word="($_part)+" \
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declare -r _word="($_part)*" \
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_close_redirection="($_varredir_or_number)($_redir_in_or_out)($_close_or_move_fd)" \
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_generic_redirection="($_redir_or_append_out_and_err|($_varredir_or_number)($_heredoc_herestring_in_out_etc))"
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# shellcheck disable=SC1087
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