Potentially evaluate to send upstream for working for perl 5.22

--- mozjs-24.2.0/js/src/config/milestone.pl 2013-11-19 19:42:43.000000000 +0000

+++ mozjs-24.2.0/js/src/config/milestone.pl 2016-06-24 08:58:01.126396537 +0000

@@ -56,7 +56,7 @@

#

my $milestone = Moz::Milestone::getOfficialMilestone($MILESTONE_FILE);

-if (defined(@TEMPLATE_FILE)) {

+if ((@TEMPLATE_FILE)) {

my $TFILE;

foreach $TFILE (@TEMPLATE_FILE) {