Add bash `-e` argument to tests/triple.test.
Add bash `-e` argument to tests/triple.test.

This makes the test fail on the first error and is consistent with all the
other intergration test scripts.

dbaarda/librsync,librsync/librsync,sourcefrog/librsync,sourcefrog/librsync,librsync/librsync,librsync/librsync,dbaarda/librsync,dbaarda/librsync,librsync/librsync,sourcefrog/librsync,dbaarda/librsync,sourcefrog/librsync