[autoroll] Minor fix for strategy change UI
[autoroll] Minor fix for strategy change UI

Bug: skia:7953
Change-Id: If7028f8ca227d747ed5c2c3a3cf5338509263f2e
Reviewed-on: https://skia-review.googlesource.com/132662
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@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