Merge pull request #6230 from takluyver/ks-test-check-usr-local

Fix kernelspec test skip condition

IPython/kernel/tests/test_kernelspec.py

@@ -57,7 +57,7 class KernelSpecTests(unittest.TestCase):
                                      kernel_name='tstinstalled',
                                      replace=True)
     
-    @onlyif(os.name != 'nt' and not os.access('/usr/share', os.W_OK), "needs Unix system without root privileges")
+    @onlyif(os.name != 'nt' and not os.access('/usr/local/share', os.W_OK), "needs Unix system without root privileges")
     def test_cant_install_kernel_spec(self):
         with self.assertRaises(OSError):
             self.ksm.install_kernel_spec(self.installable_kernel,