Fix microsoft/monaco-editor#1797.

src/vs/editor/common/config/editorOptions.ts

@@ -74,7 +74,7 @@ export interface IEditorOptions {
 	 * If it is a function, it will be invoked when rendering a line number and the return value will be rendered.
 	 * Otherwise, if it is a truey, line numbers will be rendered normally (equivalent of using an identity function).
 	 * Otherwise, line numbers will not be rendered.
-	 * Defaults to true.
+	 * Defaults to `on`.
 	 */
 	lineNumbers?: LineNumbersType;
 	/**
@@ -385,8 +385,8 @@ export interface IEditorOptions {
 	 */
 	autoSurround?: EditorAutoSurroundStrategy;
 	/**
-	 * Enable auto indentation adjustment.
-	 * Defaults to false.
+	 * Controls whether the editor should automatically adjust the indentation when users type, paste, move or indent lines.
+	 * Defaults to advanced.
 	 */
 	autoIndent?: 'none' | 'keep' | 'brackets' | 'advanced' | 'full';
 	/**

src/vs/monaco.d.ts

@@ -2865,8 +2865,8 @@ declare namespace monaco.editor {
 		 */
 		autoSurround?: EditorAutoSurroundStrategy;
 		/**
-		 * Enable auto indentation adjustment.
-		 * Defaults to false.
+		 * Controls whether the editor should automatically adjust the indentation when users type, paste, move or indent lines.
+		 * Defaults to advanced.
 		 */
 		autoIndent?: 'none' | 'keep' | 'brackets' | 'advanced' | 'full';
 		/**