Prevent get_archive.py from going into an infinite loop if you request a revision number that is too early. Review URL: https://chromiumcodereview.appspot.com//10860015
Prevent get_archive.py from going into an infinite loop if you request a
revision number that is too early.
Review URL: https://chromiumcodereview.appspot.com//10860015

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@10922 260f80e4-7a28-3924-810f-c04153c831b5

dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk