ref-filter: rename 'new' variables

Rename C++ keyword in order to bring the codebase closer to being able
to be compiled with a C++ compiler.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

ref-filter.c

@@ -529,12 +529,12 @@ static void end_align_handler(struct ref_formatting_stack **stack)
 
 static void align_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state)
 {
-	struct ref_formatting_stack *new;
+	struct ref_formatting_stack *new_stack;
 
 	push_stack_element(&state->stack);
-	new = state->stack;
-	new->at_end = end_align_handler;
-	new->at_end_data = &atomv->atom->u.align;
+	new_stack = state->stack;
+	new_stack->at_end = end_align_handler;
+	new_stack->at_end_data = &atomv->atom->u.align;
 }
 
 static void if_then_else_handler(struct ref_formatting_stack **stack)
@@ -574,16 +574,16 @@ static void if_then_else_handler(struct ref_formatting_stack **stack)
 
 static void if_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state)
 {
-	struct ref_formatting_stack *new;
+	struct ref_formatting_stack *new_stack;
 	struct if_then_else *if_then_else = xcalloc(sizeof(struct if_then_else), 1);
 
 	if_then_else->str = atomv->atom->u.if_then_else.str;
 	if_then_else->cmp_status = atomv->atom->u.if_then_else.cmp_status;
 
 	push_stack_element(&state->stack);
-	new = state->stack;
-	new->at_end = if_then_else_handler;
-	new->at_end_data = if_then_else;
+	new_stack = state->stack;
+	new_stack->at_end = if_then_else_handler;
+	new_stack->at_end_data = if_then_else;
 }
 
 static int is_empty(const char *s)