(harness) : Set the exit code to EXIT_SUCCESS when there's no changes, and EXIT_FAILURE otherwise in the headless and update mode.
(harness) : Set the exit code to EXIT_SUCCESS when there's no changes, and EXIT_FAILURE otherwise in the headless and update mode.

git-svn-id: 8c168edca3c6157a1911f01a73f2fb8eefd5ed32@2900 d15c3b8f-5b43-0410-be93-4d5a55ce2954

svn2github/es-operating-system,qbit/es-operating-system,qbit/es-operating-system,qbit/es-operating-system,svn2github/es-operating-system,svn2github/es-operating-system,svn2github/es-operating-system,qbit/es-operating-system,qbit/es-operating-system,svn2github/es-operating-system,svn2github/es-operating-system,qbit/es-operating-system,qbit/es-operating-system