Issue #26316: Merge Arg Clinic fix from 3.5

Misc/NEWS

@@ -748,6 +748,8 @@ Windows
 Tools/Demos
 -----------
 
+- Issue #26316: Fix variable name typo in Argument Clinic.
+
 - Issue #25440: Fix output of python-config --extension-suffix.
 
 - Issue #25154: The pyvenv script has been deprecated in favour of

Tools/clinic/clinic.py

@@ -199,7 +199,7 @@ def linear_format(s, **kwargs):
             add('\n')
             continue
 
-        name, curl, trailing = trailing.partition('}')
+        name, curly, trailing = trailing.partition('}')
         if not curly or name not in kwargs:
             add(line)
             add('\n')