remove unused argument (closes #21135)

1 files changed, 1 insertions, 1 deletions

diff --git a/Lib/cgi.py b/Lib/cgi.py
index a919742..1ef780c 100755
--- a/Lib/cgi.py
+++ b/Lib/cgi.py
@@ -1045,7 +1045,7 @@ def escape(s, quote=None):
     return s
 
 
-def valid_boundary(s, _vb_pattern=None):
+def valid_boundary(s):
     import re
     if isinstance(s, bytes):
         _vb_pattern = b"^[ -~]{0,200}[!-~]$"