Fix label name generated by workskace-status.sh

Change-Id: I89f2d31ee1ed5394b44335ae9b8cb320ab04c4b0
diff --git a/tools/workspace-status.sh b/tools/workspace-status.sh
index 35966f1..83f9cdc 100755
--- a/tools/workspace-status.sh
+++ b/tools/workspace-status.sh
@@ -14,4 +14,4 @@
   cd $1; git describe --always --match "v[0-9].*" --dirty
 }
 
-echo STABLE_BUILD_OWNERS-AUTOASSIGN_LABEL $(rev .)
+echo STABLE_BUILD_OWNERS_LABEL $(rev .)