--- a/mercurial/chgserver.py	Fri Nov 20 08:51:45 2020 -0800
+++ b/mercurial/chgserver.py	Fri Nov 20 09:17:38 2020 -0800
@@ -512,9 +512,7 @@
             self.cresult.write(b'exit 255')
             return
         except error.Abort as inst:
-            self.ui.error(_(b"abort: %s\n") % inst.message)
-            if inst.hint:
-                self.ui.error(_(b"(%s)\n") % inst.hint)
+            self.ui.error(inst.format())
             self.ui.flush()
             self.cresult.write(b'exit 255')
             return