white space fix.

theano/tensor/basic.py

@@ -2094,8 +2094,8 @@ class Mean(elemwise.CAReduce):
         ret = elemwise.CAReduce.c_code(self, node, name, inames, onames, sub)
         #TODO: c_code perform support only axis==None
         return ret + """
-*((double *)PyArray_DATA(%s)) /= PyArray_SIZE(%s);
-"""%(onames[0],inames[0])
+  *((double *)PyArray_DATA(%s)) /= PyArray_SIZE(%s);
+  """%(onames[0],inames[0])
 
 #TODO: implement the grad. When done and tested, you can make this the default version.
 #    def grad(self, (x,), (gout,)):