mercurial/httppeer.py

--- a/mercurial/httppeer.py	Thu Sep 13 22:48:27 2018 -0700
+++ b/mercurial/httppeer.py	Tue Aug 21 15:33:11 2018 -0700
@@ -805,6 +805,10 @@
         if name in ('bundle2',):
             return True
 
+        # Alias command-* to presence of command of that name.
+        if name.startswith('command-'):
+            return name[len('command-'):] in self._descriptor['commands']
+
         return False
 
     def requirecap(self, name, purpose):