--- a/mercurial/crecord.py	Fri Mar 18 11:06:03 2016 -0700
+++ b/mercurial/crecord.py	Fri Mar 18 11:06:03 2016 -0700
@@ -1580,6 +1580,11 @@
         return True
 
     def handlekeypressed(self, keypressed, test=False):
+        """
+        Perform actions based on pressed keys.
+
+        Return true to exit the main loop.
+        """
         if keypressed in ["k", "KEY_UP"]:
             self.uparrowevent()
         if keypressed in ["K", "KEY_PPAGE"]: