Document actual string.punctuation value. (GH-12270)

Doc/library/string.rst

@@ -56,8 +56,7 @@ The constants defined in this module are:
 .. data:: punctuation
 
    String of ASCII characters which are considered punctuation characters
-   in the ``C`` locale.
-
+   in the ``C`` locale: ``!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~``.
 
 .. data:: printable
 

Doc/tools/susp-ignored.csv

@@ -215,6 +215,7 @@ library/stdtypes,,::,>>> hash(v[::-2]) == hash(b'abcefg'[::-2])
 library/stdtypes,,:len,s[len(s):len(s)]
 library/stdtypes,,::,>>> y = m[::2]
 library/stdtypes,,::,>>> z = y[::-2]
+library/string,,`,"!""#$%&'()*+,-./:;<=>?@[\]^_`{|}~"
 library/subprocess,,`,"output=`dmesg | grep hda`"
 library/subprocess,,`,"output=`mycmd myarg`"
 library/tarfile,,:bz2,