Update comment to reflect unconditional wrapping behavior

Author: stefanzetzsche

Lib/smtplib.py

@@ -148,7 +148,7 @@ def quoteaddr(addrstring):
     """
     displayname, addr = email.utils.parseaddr(addrstring)
     if (displayname, addr) == ('', ''):
-        # parseaddr couldn't parse it, use it as is and hope for the best.
+        # parseaddr couldn't parse it, wrap it in angle brackets.
         return "<%s>" % addrstring
     return "<%s>" % addr