mercurial/scmutil.py

--- a/mercurial/scmutil.py	Mon Oct 12 12:44:18 2020 -0700
+++ b/mercurial/scmutil.py	Thu Oct 22 13:56:01 2020 -0700
@@ -226,6 +226,8 @@
             detailed_exit_code = 10
         elif isinstance(inst, error.StateError):
             detailed_exit_code = 20
+        elif isinstance(inst, error.ConfigError):
+            detailed_exit_code = 30
         ui.error(_(b"abort: %s\n") % inst.message)
         if inst.hint:
             ui.error(_(b"(%s)\n") % inst.hint)