Chore: format kotlin (#258)

Author: wodrobina

restdocs-api-spec/src/main/kotlin/com/epages/restdocs/apispec/DescriptorExtractor.kt

@@ -35,7 +35,7 @@ internal object DescriptorExtractor {
         try {
             val getFieldDescriptors = AbstractFieldsSnippet::class.java.getDeclaredMethod("getFieldDescriptors")
             getFieldDescriptors.isAccessible = true
-            var descriptors =  getFieldDescriptors.invoke(snippet) as List<FieldDescriptor>
+            var descriptors = getFieldDescriptors.invoke(snippet) as List<FieldDescriptor>
             val getSubsectionExtractor = AbstractFieldsSnippet::class.java.getDeclaredMethod("getSubsectionExtractor")
             getSubsectionExtractor.isAccessible = true
             val payloadSubsectionExtractor = getSubsectionExtractor.invoke(snippet) as PayloadSubsectionExtractor<*>?