Bug 89824 [Forms] Position of Go button in Help Search view changes
If you expand and contract the Default Scope area the position of the Go button will shift (and the combo will shrink and grow). I will attach two screencaps - note the space to the right of the Go button.
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/TableWrapLayout.java
*/
	public int horizontalSpacing = 5;
	/**
	 * Vertical spacing (default is 5).
	 */
	public int verticalSpacing = 5;
	/**
	 * If set to <code>true</code>, all the columns will have the same width.
	 * Otherwise, column widths will be computed based on controls in them and
	 * their layout data (default is <code>false</code>).
	 */
	public boolean makeColumnsEqualWidth = false;
	private boolean initialLayout = true;
	private Vector grid = null;
	private Hashtable rowspans;
	private int[] minColumnWidths, maxColumnWidths;
	private int widestColumnWidth;
	private int[] growingColumns;
	private int[] growingRows;
	private LayoutCache cache = new LayoutCache();
	private class RowSpan {
		Control child;
		int row;
		int height;
		int totalHeight;
		public RowSpan(Control child, int column, int row) {
			this.child = child;
			this.row = row;
		}
		/*