Replace a few odd tabs with spaces.

question/type/question.html

@@ -22,8 +22,8 @@
     <?php $this->print_question_grading_details($question, $state, $cmoptions, $options); ?>
   </div>
   <?php if ($comment) { ?>
-	<div class="comment">
-	  <?php
+    <div class="comment">
+      <?php
         echo get_string('comment', 'quiz').': ';
         echo $comment;
       ?>
@@ -31,11 +31,11 @@
   <?php }
             echo $commentlink;
   if ($history) { ?>
-	<div class="history">
-	  <?php
+    <div class="history">
+      <?php
         print_string('history', 'quiz');
         echo $history;
       ?>
-	</div>
+    </div>
   <?php } ?>
 </div>

question/type/shortanswer/display.html

@@ -23,7 +23,7 @@
 </div>
 
 <?php if ($correctanswer) { ?>
-	<div class="correctness correct">
+    <div class="correctness correct">
     <?php echo get_string('correctanswer', 'quiz').': '. $correctanswer; ?>
   </div>
 <?php } ?>

question/type/truefalse/display.html

@@ -19,10 +19,10 @@
         <?php echo $radiofalse ?>
     </span>
   </div>
-	<?php if ($feedback) { ?>
-		<div class="feedback">
-			<?php echo $feedback ?>
-		</div>
-	<?php } ?>
-	<?php $this->print_question_submit_buttons($question, $state, $cmoptions, $options); ?>
+    <?php if ($feedback) { ?>
+        <div class="feedback">
+            <?php echo $feedback ?>
+        </div>
+    <?php } ?>
+    <?php $this->print_question_submit_buttons($question, $state, $cmoptions, $options); ?>
 </div>

question/type/truefalse/questiontype.php

@@ -121,7 +121,7 @@ class question_truefalse_qtype extends default_questiontype {
     }
 
     function get_correct_responses(&$question, &$state) {
-    	// The correct answer is the one which gives full marks
+        // The correct answer is the one which gives full marks
         foreach ($question->options->answers as $answer) {
             if (((int) $answer->fraction) === 1) {
                 return array('' => $answer->id);