[Status] Display success when dry runs succeed
[Status] Display success when dry runs succeed

BUG=skia:6508

Change-Id: I1a54287341f84ee46e61a0e00b470f711959e97f
Reviewed-on: https://skia-review.googlesource.com/13504
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot