Bug 47208 Generate Javadoc dialog lays out too wide [javadoc]
If one uses a custom doclet and sets the doclet class path to a long path (e.g. with many JAR files on it), the "Generate Javadoc" dialog lays out to try and fit the full doclet class path on the screen; this results in a very wide dialog.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocTreeWizardPage.java
fDestinationStatus= new StatusInfo();
		fDocletStatus= new StatusInfo();
		fTreeStatus= new StatusInfo();
		fPreferenceStatus= new StatusInfo();
		fWizardStatus= store.getWizardStatus();
	}
	/*
	 * @see IDialogPage#createControl(Composite)
	 */
	public void createControl(Composite parent) {
		initializeDialogUnits(parent);
		fWizard= (JavadocWizard) this.getWizard();
		Composite composite= new Composite(parent, SWT.NONE);
		GridLayout compositeGridLayout= new GridLayout();
		composite.setLayoutData(createGridData(GridData.FILL_BOTH, 0, 0));
		compositeGridLayout.numColumns= 6;
		composite.setLayout(compositeGridLayout);
		createJavadocCommandSet(composite);
		createInputGroup(composite);
		createVisibilitySet(composite);
		createOptionsSet(composite);
		setControl(composite);
		Dialog.applyDialogFont(composite);
		WorkbenchHelp.setHelp(composite, IJavaHelpContextIds.JAVADOC_TREE_PAGE);
	}
	
	protected void createJavadocCommandSet(Composite composite) {
		
		GridLayout commandSetLayout= createGridLayout(2);
		commandSetLayout.marginHeight= 0;