Typo (thanks Arfrever)

Lib/test/test_ssl.py

@@ -306,7 +306,7 @@ class NetworkedTests(unittest.TestCase):
         # NOTE: the subject hashing algorithm has been changed between
         # OpenSSL 0.9.8n and 1.0.0, as a result the capath directory must
         # contain both versions of each certificate (same content, different
-        # filename) for this test to be portable accross OpenSSL releases.
+        # filename) for this test to be portable across OpenSSL releases.
         ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
         ctx.verify_mode = ssl.CERT_REQUIRED
         ctx.load_verify_locations(capath=CAPATH)