bpo-38347: find Python scripts whose name contain a '-'

Allow Python scripts to contain a '-' in their filename when working
recursively.

Author: rpluem

Tools/scripts/pathfix.py

@@ -89,7 +89,7 @@ def main():
     sys.exit(bad)
 
 
-ispythonprog = re.compile(r'^[a-zA-Z0-9_]+\.py$')
+ispythonprog = re.compile(r'^[a-zA-Z0-9_-]+\.py$')
 
 
 def ispython(name):