install_packages and 'hold' in the PACKAGES

[michael log]

Agree...

However,
join "x", @a, "x";
does produce "1x2x3xx".

But
join "x", @a, "";
gives "1x2x3x", like the below:

#!/usr/bin/perl
my $o, @a = ( "1", "2", "3" );

$o = join "x", @a;
print "$o\n";
$o = join "x", @a, "x";
print "$o\n";
$o = join "x", @a, "";
print "$o\n";

where the output:

1x2x3
1x2x3xx
1x2x3x