Bug 294790 [KeyBindings] LegacyActionTools should support SWT.F13 - F20
bundles/org.eclipse.jface/src/org/eclipse/jface/action/LegacyActionTools.java
if (token.length() == 1) {
			return token.charAt(0);
		}
		return -1;
	}
	/**
	 * Maps the localized modifier names to a code in the same manner as
	 * #findModifier.
	 * 
	 * Support for localized modifiers is for backwards compatibility with 1.0.
	 * Use setAccelerator(int) to set accelerators programatically or the
	 * <code>accelerator</code> tag in action definitions in plugin.xml.
	 * 
	 * @see #findModifier
	 */
	private static final int findLocalizedModifier(String token) {
		if (localizedCtrl == null) {
			initLocalizedModifiers();
		}
		token = token.toUpperCase();
		if (token.equals(localizedCtrl)) {
			return SWT.CTRL;
		}
		if (token.equals(localizedShift)) {
			return SWT.SHIFT;
		}
		if (token.equals(localizedAlt)) {
			return SWT.ALT;
		}
		if (token.equals(localizedCommand)) {