patchMake the 'lock file exists' error more informative

> ---
>  lockfile.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/lockfile.c b/lockfile.c
> index 1db1a2f..3dbb2d1 100644
> --- a/lockfile.c
> +++ b/lockfile.c
> @@ -158,7 +158,7 @@ static int lock_file(struct lock_file *lk, const char *path, int flags)
>
>  NORETURN void unable_to_lock_index_die(const char *path, int err)
>  {
> -       if (errno == EEXIST) {
> +       if (err == EEXIST) {
>                die("Unable to create '%s.lock': %s.\n\n"
>                    "If no other git process is currently running, this probably means a\n"
>                    "git process crashed in this repository earlier. Make sure no other git\n"
> @@ -184,7 +184,7 @@ int hold_lock_file_for_append(struct lock_file *lk, const char *path, int flags)
>        fd = lock_file(lk, path, flags);
>        if (fd < 0) {
>                if (flags & LOCK_DIE_ON_ERROR)
> -                       die("unable to create '%s.lock': %s", path, strerror(errno));
> +                       unable_to_lock_index_die(path, errno);
>                return fd;
>        }
>
> --
> 1.6.2.rc2.23.g77740
>
>

> John Tapsell <johnflux@gmail.com> writes:
>
>> It looks like someone did 90% of the work, then forgot to actually use
>> the function
>
> someone = me ;-).
>
> The message is a bit inacurrate: the function is already used in two
> places, I just didn't notice this one.
>
>> -	if (errno == EEXIST) {
>> +	if (err == EEXIST) {
>
> Oops, right.
>
>> -			die("unable to create '%s.lock': %s", path, strerror(errno));
>> +			unable_to_lock_index_die(path, errno);
>
> Actually, _this_ instance is still to be fixed in next. You probably
> looked at the other one that my original message fixes.