Bug#649834: detect if we are already up to date and if so stop

[jidanni at jidanni.org]

So the difference must lie in

AG>   % echo $PERL_CPANM_OPT
AG>   -q -l ~/.perl5

$ echo $PERL_CPANM_OPT
$

Perhaps you can test again with no $PERL_CPANM_OPT.