Minor - format code.

main/install/install.lib.php

@@ -415,6 +415,7 @@ function & get_language_folder_list()
         closedir($handle);
         asort($result);
     }
+    
     return $result;
 }
 
@@ -880,7 +881,7 @@ function display_requirements(
             if ($file_course_test_was_created == true) {
                 break;
             }
-            $r = @touch($course_dir.'/test.php',$perm);
+            $r = @touch($course_dir.'/test.php', $perm);
             if ($r === true) {
                 $fil_perm_verified = $perm;
                 if (check_course_script_interpretation($course_dir, $course_attempt_name, 'test.php')) {
@@ -1252,7 +1253,7 @@ function get_contact_registration_form()
             <div class="col-sm-3">&nbsp;</div>
             <div class="col-sm-9"><span class="form_required">*</span><small>'.get_lang('FieldRequired').'</small></div>
     </div></div></div>
-</form>';
+    </form>';
 
     return $html;
 }
@@ -1295,9 +1296,7 @@ function displayDatabaseParameter(
             echo '<div class="col-sm-5"><input type="' . $inputType . '" class="form-control" size="' . DATABASE_FORM_FIELD_DISPLAY_LENGTH . '" maxlength="' . $maxLength . '" name="' . $formFieldName . '" id="' . $formFieldName . '" value="' . api_htmlentities($parameterValue) . '" />' . "</div>";
             echo '<div class="col-sm-3">' . $extra_notice . '</div>';
         }
-
     }
-
 }
 
 /**
@@ -1473,6 +1472,7 @@ function display_database_settings_form(
 
     <?php
 }
+
 function panel($content = null, $title = null, $id = null, $style = null) {
     $html = '';
     if (empty($style)) {
@@ -1489,6 +1489,7 @@ function panel($content = null, $title = null, $id = null, $style = null) {
     $html .= $panelParent;
     return $html;
 }
+
 /**
  * Displays a parameter in a table row.
  * Used by the display_configuration_settings_form function.
@@ -1513,6 +1514,7 @@ function display_configuration_parameter(
         $html .= '<div class="col-sm-6"><input class="form-control" type="text" size="'.FORM_FIELD_DISPLAY_LENGTH.'" maxlength="'.MAX_FORM_FIELD_LENGTH.'" name="'.$formFieldName.'" value="'.api_htmlentities($parameterValue, ENT_QUOTES).'" />'."</div>";
     }
     $html .= "</div>";
+
     return $html;
 }
 
@@ -2225,6 +2227,7 @@ function installProfileSettings($installationProfile = '')
 
     return true;
 }
+
 /**
  * Quick function to remove a directory with its subdirectories
  * @param $dir