commit ec5e729fcf692a17285eb66f8f28ed9b236216dd
author Ying Wang <wangying@google.com> Mon Apr 26 18:36:52 2010 -0700
committer Ying Wang <wangying@google.com> Tue Jul 20 16:30:40 2010 -0700
tree e31b265fcdf3d2187b39c656f35ce9ff7b84ac23
parent 0bd59a0a58f9891926ff6faf74a78307230d705b

Make build/core/find-jdk-tools-jar.sh fail more explicitly

http://b/issue?id=1505957
Before this change, if tools.jar can not be found, make reports error like:
make: *** No rule to make target `Please-install-JDK-5.0,-update-12-or-higher,-which-you-can-download-from-java.sun.com'...
With this change, the error message is much nicer:
build/core/config.mk:264: *** Error: could not find jdk tools.jar, please install JDK-5.0, update 12 or higher, which you can download from java.sun.com.  Stop.

Change-Id: Id33cfb6ee7676d66f00d0a41d07c1f27abc6a402