message: Fixed comment for UserExpression::Complete [NFC]
diff: @@ -107,8 +107,8 @@ public:
  /// are needed for parsing and completing (locations of functions, types
  /// of variables, persistent variables, etc.)
  ///
  - /// @param[out] matches
  - /// The list of completions that should be appended with string
  + /// @param[out] request
  + /// The completion request to fill out. The completion should be a string
  /// that would complete the current token at the cursor position.
  /// Note that the string in the list replaces the current token
  /// in the command line.
  