test75: fix child run time check bug

Change-Id: Ieb071f01bfd5a07093868e5dbfc7d941f435bf20
release.sh: SVN to GIT updates

- exclude .git instead of .svn when using local source (-c);
- put the git tag (or "copy") in /etc/version rather than something
  outdated related to SVN;
- remove SVN-specific -s flag (suggested by Erik).

Change-Id: Ia35eb95c39ae93ebae5638c9dd7847428593b813