Add zeroing state to claw status messages.

Change-Id: I0144cb1455a3de5abca45e071c22f59cd4631e3f
diff --git a/frc971/control_loops/claw/claw.cc b/frc971/control_loops/claw/claw.cc
index 057c323..5b78a80 100644
--- a/frc971/control_loops/claw/claw.cc
+++ b/frc971/control_loops/claw/claw.cc
@@ -249,6 +249,7 @@
   status->zeroed = state_ == RUNNING;
   status->estopped = state_ == ESTOP;
   status->state = state_;
+  zeroing::PopulateEstimatorState(claw_estimator_, &status->zeroing_state);
 
   status->angle = claw_loop_->X_hat(0, 0);
   if (output) {