hg: build-infra/jdk8: Adding features to compare.sh for comparing arbitrary files and dirs.

[erik.joelsson at oracle.com]

Changeset: c6b5ad09a4ab
Author:    erikj
Date:      2013-09-27 14:06 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/c6b5ad09a4ab

Adding features to compare.sh for comparing arbitrary files and dirs.

! common/bin/compare.sh