am b71b2905: Merge "DO NOT MERGE: Change build id to JB_MR2" into jb-mr2-dev

* commit 'b71b290587a1c64c89745fa730bcbb0c4d69f6cc':
  DO NOT MERGE: Change build id to JB_MR2
diff --git a/core/build_id.mk b/core/build_id.mk
index 40bb35d..ffff91e 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -23,7 +23,7 @@
 # (like "TC1-RC5").  It must be a single word, and is
 # capitalized by convention.
 #
-BUILD_ID := MASTER
+BUILD_ID := JB_MR2
 
 # DISPLAY_BUILD_NUMBER should only be set for development branches,
 # If set, the BUILD_NUMBER (cl) is appended to the BUILD_ID for