ui: Objective-C @interface support for Cocoa; minor clean-ups

examples/hot_reload/message.v

@@ -1,18 +1,18 @@
 // Build this example with
-// v -live message.v 
+// v -live message.v
 module main
 
 import time
 
-[live] 
+[live]
 fn print_message() {
-	println('Hello! Modify this message while the program is running.') 
+	println('Hello! Modify this message while the program is running.')
 }
 
 fn main() {
 	for {
 		print_message()
-		time.sleep_ms(500)  
+		time.sleep_ms(500)
 	}
 }