Re: [PATCH v2 5/9] builtin/rebase.c: rename "squash_onto_name" to "to_free"

> The real use of the "squash_onto_name" added in [1] is to keep track
> of a value for later free()-ing, we don't subsequently use it for
> anything else.
> 
> Let's rename it in preparation for re-using it for free()-ing before
> another assignment to "options.onto_name", which is an outstanding
> leak that'll be fixed in a subsequent commit.

> 1. 9dba809a69a (builtin rebase: support --root, 2018-09-04)
> 
> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>   builtin/rebase.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/builtin/rebase.c b/builtin/rebase.c
> index 5859a5387d8..0d8c050f6b3 100644
> --- a/builtin/rebase.c
> +++ b/builtin/rebase.c
> @@ -1036,7 +1036,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
>   	const char *rebase_merges = NULL;
>   	struct string_list strategy_options = STRING_LIST_INIT_NODUP;
>   	struct object_id squash_onto;
> -	char *squash_onto_name = NULL;
> +	char *to_free = NULL;
>   	int reschedule_failed_exec = -1;
>   	int allow_preemptive_ff = 1;
>   	int preserve_merges_selected = 0;
> @@ -1589,7 +1589,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
>   					&squash_onto, NULL, NULL) < 0)
>   				die(_("Could not create new root commit"));
>   			options.squash_onto = &squash_onto;
> -			options.onto_name = squash_onto_name =
> +			options.onto_name = to_free =
>   				xstrdup(oid_to_hex(&squash_onto));
>   		} else
>   			options.root_with_onto = 1;
> @@ -1835,7 +1835,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
>   	free(options.cmd);
>   	free(options.strategy);
>   	strbuf_release(&options.git_format_patch_opt);
> -	free(squash_onto_name);
> +	free(to_free);
>   	string_list_clear(&exec, 0);
>   	string_list_clear(&strategy_options, 0);
>   	return !!ret;