CRAS: test_client - Switch to localtime_r

localtime returns a pointer to a global, which can break. Static
analysis will complain about any use of this as it's so easy to get
wrong.

Change-Id: I6c6442c459b565db529c3f3410263d9ea2b661b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/2447233
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
1 file changed