“Native” environment type renamed to “Prefix”.

src/main.cr

@@ -102,7 +102,7 @@ end
 
 class Environment
 	enum Type
-		Native
+		Prefix
 		RootFileSystem
 	end
 
@@ -110,7 +110,7 @@ class Environment
 		name: String,
 		type: {
 			type: Type,
-			default: Type::Native
+			default: Type::Prefix
 		},
 		domain_name: {
 			type: String?,
@@ -120,7 +120,7 @@ class Environment
 
 	def initialize()
 		@name = "root"
-		@type = Type::Native
+		@type = Type::Prefix
 	end
 
 	class_getter root = Environment.new