Description:
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Mlmmj accepts too much for its commandline arguments at times. E.g. using mlmmj-sub a carriage return can be accepted at the end of an email address and be subscribed.

Test script:
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$_REQUEST['address'] comes from a textarea:

$addressA = explode("\n", $_REQUEST['address']);
foreach ($addressA as $a) {
   exec("sudo /usr/bin/mlmmj-sub -L /var/spool/mlmmj/listname/ -a {$a} -s");
}


Expected result:
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Either a sanitised address subscribed to the list, or more probably, an error from Mlmmj that the address is invalid.

Actual result:
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Addresses are subscribed with carriage returns in them that are then difficult to remove!