EVENT_INIT and obs. kbd_buffer_gcpro: 'arg' init still needed?

[Adrian Robert]

Hi,

One use of the termhooks.h EVENT_INIT() macro in macterm.c also takes  
care to init the event's 'arg' to "Qnil", explaining with this comment:

      /* It is necessary to set this (additional) argument slot of an
         event to nil because keyboard.c protects incompletely
         processed event from being garbage collected by placing them
         in the kbd_buffer_gcpro vector.  */

However, according to the ChangeLog this vector was removed on  
2004-01-21 in response to changes on 2003-06-15, including the very  
introduction of the EVENT_INIT() macro.  My question is, is the  
additional call to set 'arg' to "Qnil", found in w32, mac, and x  
terms, still needed?  I notice that macterm does not have it for  
other calls to EVENT_INIT.  Other terms only use EVENT_INIT once.

Thanks.