Issue #944: Un-hide arguments field in Text Extraction action.

modules/islandora_text_extraction/src/Plugin/Action/GenerateOCRDerivative.php

@@ -37,11 +37,10 @@ class GenerateOCRDerivative extends AbstractGenerateDerivative {
    */
   public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
     $form = parent::buildConfigurationForm($form, $form_state);
-    $form['mimetype']['#description'] = $this->t('Mimetype to convert to (e.g. application/xml, etc...)');
+    
-    $form['mimetype']['#value'] = 'text/plain';
-    $form['mimetype']['#type'] = 'textfield';
 
-    unset($form['args']);
+    $form['args']['#description'] = $this->t("Arguments to send to Tesseract. To generate hOCR, use:<br /><code>-c tessedit_create_hocr=1 -c hocr_font_info=0</code>");
+    
     return $form;
   }