configitems: register the 'hostfingerprints' section

mercurial/configitems.py

@@ -454,6 +454,10 b" coreconfigitem('hooks', '.*',"
     default=dynamicdefault,
     generic=True,
 )
+coreconfigitem('hostfingerprints', '.*',
+    default=list,
+    generic=True,
+)
 coreconfigitem('hostsecurity', 'ciphers',
     default=None,
 )

mercurial/sslutil.py

@@ -200,7 +200,7 b' def _hostsettings(ui, hostname):'
         s['certfingerprints'].append((alg, fingerprint))
 
     # Fingerprints from [hostfingerprints] are always SHA-1.
-    for fingerprint in ui.configlist('hostfingerprints', hostname, []):
+    for fingerprint in ui.configlist('hostfingerprints', hostname):
         fingerprint = fingerprint.replace(':', '').lower()
         s['certfingerprints'].append(('sha1', fingerprint))
         s['legacyfingerprint'] = True