Synopsis:
   bind <key> blink

Description:
   This function toggles the current blink setting.  Due to internal
   limitations of the client, BLINK is displayed as an F on the input line,
   regardless of the key it is bound to.

See Also:
   bind(4) highlight_off, reverse, underline, bold;
   set(4) blink_video

Other Notes:
   Blinking text can be typed at any time, but it will only be displayed
   if BLINK_VIDEO is on.