Update the docstring to match the code. Will backport.
diff --git a/Lib/string.py b/Lib/string.py
index 64e1190..021469c 100644
--- a/Lib/string.py
+++ b/Lib/string.py
@@ -75,10 +75,12 @@
# Strip leading and trailing tabs and spaces
def strip(s, chars=None):
- """strip(s) -> string
+ """strip(s [,chars]) -> string
Return a copy of the string s with leading and trailing
whitespace removed.
+ If chars is given and not None, remove characters in sep instead.
+ If chars is unicode, S will be converted to unicode before stripping.
"""
return s.strip(chars)