docs: FormArrayDirective mentions

packages/forms/src/directives/reactive_directives/form_group_name.ts

@@ -131,12 +131,12 @@ export const formArrayNameProvider: any = {
  *
  * Syncs a nested `FormArray` to a DOM element.
  *
- * This directive is designed to be used with a parent `FormGroupDirective`/`FormGroupArray` (selector:
+ * This directive is designed to be used with a parent `FormGroupDirective`/`FormArrayDirective` (selector:
  * `[formGroup]`/`[formArray]`).
  *
  * It accepts the string name of the nested `FormArray` you want to link, and
  * will look for a `FormArray` registered with that name in the parent
- * `FormGroup`/`FormArray` instance you passed into `FormGroupDirective`/`FormGroupArray`.
+ * `FormGroup`/`FormArray` instance you passed into `FormGroupDirective`/`FormArrayDirective`.
  *
  * @see [Reactive Forms Guide](guide/forms/reactive-forms)
  * @see {@link AbstractControl}

packages/forms/src/directives/reactive_errors.ts

@@ -20,7 +20,7 @@ import {
 export function controlParentException(nameOrIndex: string | number | null): Error {
   return new RuntimeError(
     RuntimeErrorCode.FORM_CONTROL_NAME_MISSING_PARENT,
-    `formControlName must be used with a parent formGroup or formArray directive.  You'll want to add a formGroup/formArray
+    `formControlName must be used with a parent formGroup or formArray directive. You'll want to add a formGroup/formArray
       directive and pass it an existing FormGroup/FormArray instance (you can create one in your class).
 
       ${describeFormControl(nameOrIndex)}