About the Perl range operator

I have a question about the range operator in Perl. The code is here:

 #! /usr/bin/perl
 open FILE, "<test.txt";
 while (<FILE>) {
     print if (1 .. 5);
 }
 close FILE;

The contents in test.txt is something like:

 1
 2
 3
 4
 5

The result of the code is all five lines of the file. There is no difference when I use print if (1 ... 5). I think it should output four lines. Is there something I made a mistake in?