Renamed config.toolbar.shouldGroupWhenFull to config.toolbar.shouldNo…

…tGroupWhenFull.

src/editor/editorconfig.jsdoc

@@ -146,7 +146,7 @@
  *
  *				viewportTopOffset: 30,
  *
- *				shouldGroupWhenFull: true
+ *				shouldNotGroupWhenFull: true
  *			}
  *		};
  *
@@ -164,11 +164,11 @@
  * * **`toolbar.viewportTopOffset`** – The offset (in pixels) from the top of the viewport used when positioning a sticky toolbar.
  * Useful when a page with which the editor is being integrated has some other sticky or fixed elements
  * (e.g. the top menu). Thanks to setting the toolbar offset the toolbar will not be positioned underneath or above the page's UI.
- * * **`toolbar.shouldGroupWhenFull`** – When `true` (default), the toolbar will group its items that
- * would normally wrap to the next line when there is not enough space to display them in a single row.
+ * * **`toolbar.shouldNotGroupWhenFull`** – When set `true`, the toolbar will stop grouping items that wrap to the next line when
+ * there is not enough space to display them in a single row.
  *
- *	**Note**: For now this option works for {@link module:editor-classic/classiceditor~ClassicEditor} and
- * {@link module:editor-decoupled/decouplededitor~DecoupledEditor} only.
+ *	**Note**: For now this option affects {@link module:editor-classic/classiceditor~ClassicEditor} and
+ * {@link module:editor-decoupled/decouplededitor~DecoupledEditor} only that enable automatic toolbar items grouping by default.
  *
  * @member {Array.<String>|Object} module:core/editor/editorconfig~EditorConfig#toolbar
  */