Fix styling

Author: rubenvanassche

src/Transformers/EnumTransformer.php

@@ -75,7 +75,7 @@ protected function toEnumValue(ReflectionEnumBackedCase $case): string
 
         $newValue = "";
 
-        if (!is_string($value)) {
+        if (! is_string($value)) {
             return "{$value}";
         }
 

tests/FakeClasses/StringBackedEnumWithSingleQuotes.php

@@ -6,4 +6,4 @@ enum StringBackedEnumWithSingleQuotes: string
 {
     case NO_QUOTE = 'no quote';
     case HAS_QUOTE = 'has quote \'';
-}
+}

tests/Transformers/EnumTransformerTest.php

@@ -145,4 +145,4 @@
     assertTrue($type->missingSymbols->isEmpty());
     assertFalse($type->isInline);
     assertEquals('type', $type->keyword);
-});
+});