Objective-C - Stripping New Lines

gistfile1.m

NSString *string = @"Lion says:\nRoar!\nGrowl!";
NSMutableString *mstring = [NSMutableString stringWithString:string];
NSLog(@"before: %@",mstring);
NSRange wholeShebang = NSMakeRange(0, [mstring length]);
  
[mstring replaceOccurrencesOfString: @"\n"
                         withString: @""
                            options: 0
                              range: wholeShebang];