Add comment following code review.

theano/gof/compiledir.py

@@ -208,6 +208,8 @@ def cleanup():
                         have_c_compiler = False
                         for obj in flatten(key):
                             if isinstance(obj, numpy.ndarray):
+                                #Reuse have_npy_abi_version to
+                                #force the removing of key
                                 have_npy_abi_version = False
                                 break
                             elif isinstance(obj, basestring):
@@ -219,6 +221,8 @@ def cleanup():
                                   hasattr(obj, 'c_code_cache_version')):
                                 v = obj.c_code_cache_version()
                                 if v not in [(), None] and v not in key[0]:
+                                    #Reuse have_npy_abi_version to
+                                    #force the removing of key
                                     have_npy_abi_version = False
                                     break