Fix issue number in comment.
diff --git a/Lib/email/test/test_email.py b/Lib/email/test/test_email.py
index c38a426..cfd8f6c 100644
--- a/Lib/email/test/test_email.py
+++ b/Lib/email/test/test_email.py
@@ -3278,7 +3278,7 @@
# Tests to ensure that signed parts of an email are completely preserved, as
# required by RFC1847 section 2.1. Note that these are incomplete, because the
-# email package does not currently always preserve the body. See issue 96843.
+# email package does not currently always preserve the body. See issue 1670765.
class TestSigned(TestEmailBase):
def _msg_and_obj(self, filename):