[PATCH 05/17] Regex: Avoid memory leaks.

[Paul Eggert]

On 12/08/2017 01:16 AM, Arnold Robbins wrote:
> +                 if (new_array_start != NULL)
> +                     re_free(new_array_start);

For this rarely-used code, it's better to omit the first line and simply 
call re_free unconditionally, as this is simpler and likely will make 
for fewer instructions in the executable. re_free will do the right 
thing if new_array_start is NULL.

Aside from that, this patch is essentially the same as:

https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=9e849a708308b73064cd965de022d357e3abda80

which is already installed in Gnulib.