Missing semicolon.

number_generator.pl

@@ -12,7 +12,7 @@ my @numbers_one_to_nineteen = (@numbers_one_to_nine, qw/ten eleven twelve thirte
 # This is contains an undef in the decenes index just to hopefully catch some warning if gets wrongfully used.)
 my @decenes = (undef, qw/twenty thirty forty fifty sixty seventy eighty ninety/);
 
-main()
+main();
 
 sub main {
     my $start_of_range = $ARGV[0];