* subversion/tests/cmdline/svntest/main.py
  (run_command_stdin): Report the command and its exit code when raising an
    exception due to unexpected exit code or stderr, as the plain 'Failure'
    exception was giving no clue about what was failing.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1461809 13f79535-47bb-0310-9956-ffa450edef68