Fixed test to properly be SKIPPED instead of ERROR

theano/sandbox/cuda/tests/test_nnet.py

@@ -12,10 +12,10 @@ import theano.tensor.signal.downsample as downsample
 
 import numpy
 
-raise SkipTest('SKIP TO MAKE THE BUILDBOT DON\'T CRASH. THEIR IS A DIFFICULT BUG TO FIX WITH MEMORY LEAK AND/OR WHEN Cuda_Ndarray alloc fail!')
 
 # Skip test if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
+raise SkipTest('SKIP TO PREVENT THE BUILDBOT FROM CRASHING. THERE IS A DIFFICULT BUG TO FIX WITH MEMORY LEAK AND/OR WHEN Cuda_Ndarray alloc fail!')
 import theano.sandbox.cuda as cuda_ndarray
 if cuda_ndarray.cuda_available == False:
     raise SkipTest('Optional package cuda disabled')