refactor/rename: add pid to name of temporary file for diff

Change-Id: Icd543062b4e1fe8c998f95c0daff5364f08ce83c
Reviewed-on: https://go-review.googlesource.com/18211
Reviewed-by: Ralph Corderoy <ralph.corderoy@gmail.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
1 file changed