[Toybox] [PATCH] diff: fix diff of stdin for systems without /tmp.

[enh]

(actually, i mean fixes the _cat_ tests, as the commit message correctly
says.)

On Mon, Jun 24, 2019 at 8:53 AM enh <enh at google.com> wrote:

> ping...
>
> (fixes the diff tests on Android.)
>
> On Sat, Jun 22, 2019 at 11:24 AM enh <enh at google.com> wrote:
>
>> xtempfile() alreay does the right thing, so switch to that.
>>
>> Also use xsendfile() for the actual copying.
>>
>> Fixes the cat tests on Android.
>> ---
>>  toys/pending/diff.c | 15 ++++-----------
>>  1 file changed, 4 insertions(+), 11 deletions(-)
>>
>
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