quiet down logs at start

Change-Id: I3c2dfa59a7a24ef942d245ed90a838335ece598c
diff --git a/frc971/control_loops/claw/claw.cc b/frc971/control_loops/claw/claw.cc
index ff378c8..74c9060 100644
--- a/frc971/control_loops/claw/claw.cc
+++ b/frc971/control_loops/claw/claw.cc
@@ -159,7 +159,7 @@
       break;
 
     case ZEROING:
-      LOG(INFO, "Zeroing.\n");
+      LOG(DEBUG, "Zeroing.\n");
 
       // Update state_.
       UpdateZeroingState();