Fix for issue14426 - buildbots here I come

Lib/http/cookies.py

@@ -439,7 +439,7 @@ _CookiePattern = re.compile(r"""
     (?P<val>                       # Start of group 'val'
     "(?:[^\\"]|\\.)*"                # Any doublequoted string
     |                                # or
-    \w{3},\s[\w\d-]{9,11}\s[\d:]{8}\sGMT  # Special case for "expires" attr
+    \w{3},\s[\w\d\s-]{9,11}\s[\d:]{8}\sGMT  # Special case for "expires" attr
     |                                # or
     """ + _LegalCharsPatt + r"""*    # Any word or empty string
     )                              # End of group 'val'