second set of ANSI C changes: C89-style function declarations, more inline functions, remove register keyword

builtins/exit.def

@@ -54,8 +54,7 @@ static int exit_or_logout (WORD_LIST *);
 static int sourced_logout;
 
 int
-exit_builtin (list)
-     WORD_LIST *list;
+exit_builtin (WORD_LIST *list)
 {
   CHECK_HELPOPT (list);
 
@@ -79,8 +78,7 @@ $END
 
 /* How to logout. */
 int
-logout_builtin (list)
-     WORD_LIST *list;
+logout_builtin (WORD_LIST *list)
 {
   CHECK_HELPOPT (list);
 
@@ -94,8 +92,7 @@ logout_builtin (list)
 }
 
 static int
-exit_or_logout (list)
-     WORD_LIST *list;
+exit_or_logout (WORD_LIST *list)
 {
   int exit_value;
 
@@ -156,7 +153,7 @@ exit_or_logout (list)
 }
 
 void
-bash_logout ()
+bash_logout (void)
 {
   /* Run our `~/.bash_logout' file if it exists, and this is a login shell. */
   if (login_shell && sourced_logout++ == 0 && subshell_environment == 0)