GRH13B

Change-Id: I79a455005d01ae300558074d1aa818bfbc61a6e3
diff --git a/core/build_id.mk b/core/build_id.mk
index a07bec5..8384a07 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -19,4 +19,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=GRH13
+export BUILD_ID=GRH13B