Fixed spaces and removed not needed cast

lib/Gedmo/Translatable/Mapping/Driver/Annotation.php

@@ -97,8 +97,8 @@ class Annotation implements AnnotationDriverInterface
                 }
                 // fields cannot be overrided and throws mapping exception
                 $config['fields'][] = $field;
-                if(isset($translatable->fallback)) {
-                    $config['fallback'][$field] = (bool)$translatable->fallback;
+                if (isset($translatable->fallback)) {
+                    $config['fallback'][$field] = $translatable->fallback;
                 }
             }
             // locale property

lib/Gedmo/Translatable/Mapping/Driver/Xml.php

@@ -66,7 +66,7 @@ class Xml extends BaseXml
                     /** @var \SimpleXmlElement $data */
                     $data = $mapping->translatable;
                     if ($this->_isAttributeSet($data, 'fallback')) {
-                        $config['fallback'][$field] = (bool)$this->_getAttribute($data, 'fallback');
+                        $config['fallback'][$field] = $this->_getAttribute($data, 'fallback');
                     }
                 }
             }

lib/Gedmo/Translatable/Mapping/Driver/Yaml.php

@@ -55,7 +55,7 @@ class Yaml extends File implements Driver
                         // fields cannot be overrided and throws mapping exception
                         $config['fields'][] = $field;
                         if (isset($fieldMapping['gedmo']['translatable']['fallback'])) {
-                            $config['fallback'][$field] = (bool)$fieldMapping['gedmo']['translatable']['fallback'];
+                            $config['fallback'][$field] = $fieldMapping['gedmo']['translatable']['fallback'];
                         }
                     }
                 }