;;;###autoload
(defun mime-set-field-decoder (field &rest specs)
- "Set decoder of FILED.
+ "Set decoder of FIELD.
SPECS must be like `MODE1 DECODER1 MODE2 DECODER2 ...'.
Each mode must be `nil', `plain', `wide', `summary' or `nov'.
If mode is `nil', corresponding decoder is set up for every modes."