lib/oeqa: rename assertRaisesRegexp to assertRaisesRegex

TestCase.assertRaisesRegexp was renamed to assertRaisesRegex in Python
3.2, so rename to fix a warning during test execution.

(From OE-Core rev: ff720f337e40761c7d4d544c963cf518ad5403ad)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 6df44a4b29487bf8ef51bb5ba6467a4056b749cc)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/lib/oeqa/selftest/cases/runcmd.py

@@ -56,11 +56,11 @@ class RunCmdTests(OESelftestTestCase):
         self.assertEqual(result.status, 0)
 
     def test_result_assertion(self):
-        self.assertRaisesRegexp(AssertionError, "Command 'echo .* false' returned non-zero exit status 1:\nfoobar",
+        self.assertRaisesRegex(AssertionError, "Command 'echo .* false' returned non-zero exit status 1:\nfoobar",
                                 runCmd, "echo foobar >&2; false", shell=True)
 
     def test_result_exception(self):
-        self.assertRaisesRegexp(CommandError, "Command 'echo .* false' returned non-zero exit status 1 with output: foobar",
+        self.assertRaisesRegex(CommandError, "Command 'echo .* false' returned non-zero exit status 1 with output: foobar",
                                 runCmd, "echo foobar >&2; false", shell=True, assert_error=False)
 
     def test_output(self):