diff -r 346af7687c6f -r 89a2afe31e82 mercurial/sslutil.py
--- a/mercurial/sslutil.py	Fri Nov 27 17:00:00 2020 -0500
+++ b/mercurial/sslutil.py	Fri Nov 27 17:03:29 2020 -0500
@@ -227,8 +227,7 @@
 
 
 def commonssloptions(minimumprotocol):
-    """Return SSLContext options common to servers and clients.
-    """
+    """Return SSLContext options common to servers and clients."""
     if minimumprotocol not in configprotocols:
         raise ValueError(b'protocol value not supported: %s' % minimumprotocol)
 
@@ -617,11 +616,11 @@
 
 
 def _verifycert(cert, hostname):
-    '''Verify that cert (in socket.getpeercert() format) matches hostname.
+    """Verify that cert (in socket.getpeercert() format) matches hostname.
     CRLs is not handled.
 
     Returns error message if any problems are found and None on success.
-    '''
+    """
     if not cert:
         return _(b'no certificate received')