--- a/rust/rhg/src/ui.rs	Fri Dec 17 17:56:13 2021 +0100
+++ b/rust/rhg/src/ui.rs	Sat Dec 18 11:47:03 2021 +0100
@@ -51,7 +51,7 @@
         stderr.flush().or_else(handle_stderr_error)
     }
 
-    /// is plain mode active
+    /// Return whether plain mode is active.
     ///
     /// Plain mode means that all configuration variables which affect
     /// the behavior and output of Mercurial should be