hgweb: move remaining hasattr calls to safehasattr

mercurial/hgweb/server.py

@@ -248,7 +248,7 b' try:'
     from threading import activeCount
     _mixin = SocketServer.ThreadingMixIn
 except ImportError:
-    if hasattr(os, "fork"):
+    if util.safehasattr(os, "fork"):
         _mixin = SocketServer.ForkingMixIn
     else:
         class _mixin(object):

mercurial/hgweb/webutil.py

@@ -72,7 +72,7 b' def _siblings(siblings=[], hiderev=None)'
         d['date'] = s.date()
         d['description'] = s.description()
         d['branch'] = s.branch()
-        if hasattr(s, 'path'):
+        if util.safehasattr(s, 'path'):
             d['file'] = s.path()
         yield d