Bug 42056 [Dialogs] New Path Variable Dialog; lable alignment
The "Name" and "Location" labels should be bottom aligned with their corresponding text fields.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariableDialog.java
/**
     * Sets the <code>FormData</code> on the specified button to be one that is
     * spaced for the current dialog page units. The method
     * <code>initializeDialogUnits</code> must be called once before calling this
     * method for the first time.
     * 
     * @param button the button to set the <code>FormData</code>
     * @return the <code>FormData</code> set on the specified button
     */
    private FormData setButtonFormLayoutData(Button button) {
        FormData data = new FormData();
        int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
        data.width = Math.max(widthHint, button.computeSize(SWT.DEFAULT,
                SWT.DEFAULT, true).x);
        button.setLayoutData(data);
        return data;
    }
    /**
     * Fires validations (variable name first) and updates enabled state for the
     * "Ok" button accordingly.
     */
    private void variableNameModified() {
        
        variableName = variableNameField.getText();
        validationStatus = IMessageProvider.NONE;
        okButton.setEnabled(validateVariableName() && validateVariableValue());
        nameEntered = true;
    }
    /**
     * Fires validations (variable value first) and updates enabled state for the