Fix dartanalyzer failure to run when there are spaces in the path to the dart-sdk.
Fix dartanalyzer failure to run when there are spaces in the path to the dart-sdk.

BUG=dartbug.com/7593
R=devoncarew@google.com

Review URL: https://codereview.chromium.org//16068003

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@23198 260f80e4-7a28-3924-810f-c04153c831b5

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