The java version changed, and we made envsetup automatically find the right JAVA_HOME.

This change forces everyone to re-source envsetup.sh

Change-Id: Ieb9512d5725cca26a83debf9b0480bc20e19d5ee
diff --git a/buildspec.mk.default b/buildspec.mk.default
index 6303efc..c568a82 100644
--- a/buildspec.mk.default
+++ b/buildspec.mk.default
@@ -115,4 +115,4 @@
 # variable will be changed.  After you have modified this file with the new
 # changes (see buildspec.mk.default), update this to the new value from
 # buildspec.mk.default.
-BUILD_ENV_SEQUENCE_NUMBER := 9
+BUILD_ENV_SEQUENCE_NUMBER := 10