Added void type

acs.vim

@@ -12,7 +12,7 @@ hi def link language_keywords Keyword
 syn keyword script_types OPEN ENTER RETURN RESPAWN DEATH LIGHTNING UNLOADING DISCONNECT KILL REOPEN net
 hi def link script_types Keyword
 
-syn keyword types int str bool
+syn keyword types int str bool void
 hi def link types Type
 
 syn keyword TODO TODO FIXME XXX