Re: [WIP/PATCH v5 02/10] for-each-ref: clean up code

> In 'grab_single_ref()' remove the extra count variable 'cnt' and
> use the variable 'grab_cnt' of structure 'grab_ref_cbdata' directly
> instead.
>
> Change comment in 'struct ref_sort' to reflect changes in code.

>  struct ref_sort {
>  	struct ref_sort *next;
> -	int atom; /* index into used_atom array */
> +	int atom; /* index into 'struct atom_value *' array */
>  	unsigned reverse : 1;
>  };
>  
> @@ -881,7 +881,6 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f
>  {
>  	struct grab_ref_cbdata *cb = cb_data;
>  	struct refinfo *ref;
> -	int cnt;
>  
>  	if (flag & REF_BAD_NAME) {
>  		  warning("ignoring ref with broken name %s", refname);
> @@ -898,10 +897,8 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f
>  	 */
>  	ref = new_refinfo(refname, sha1, flag);
>  
> -	cnt = cb->grab_cnt;
> -	REALLOC_ARRAY(cb->grab_array, cnt + 1);
> -	cb->grab_array[cnt++] = ref;
> -	cb->grab_cnt = cnt;
> +	REALLOC_ARRAY(cb->grab_array, cb->grab_cnt + 1);
> +	cb->grab_array[cb->grab_cnt++] = ref;
>  	return 0;
>  }