Added mention of corresponding ticket to test case

theano/tensor/tests/test_misc.py

+# This bug is detailed in ticket #387. Please close this ticket once the test
+# passes (http://pylearn.org/theano/trac/ticket/387).
+
 import numpy, theano
 from theano import tensor
 
-def test_bug_2009_06_02():
+def test_bug_2009_06_02_trac_387():
 
     y = tensor.lvector()
     f = theano.function([y], tensor.stack(y[0] / 2))