-Wformat-nonliteral is picky

bad.m

NSString *template = NSLocalizedString(@"My name is %@", @"A label for displaying the user's name");
NSString *str = [NSString stringWithFormat:template, @"John"];
// warning: format string is not a string literal [-Wformat-nonliteral]


label.text = str;

good.m

NSString *str = [NSString stringWithFormat:NSLocalizedString(@"My name is %@", @"A label for displaying the user's name"), @"John"];
// No warning.

label.text = str;