fix the compile error do to perl update

Upstream-status: Inappropriate


Signed-of-by: Armin Kuster <akuster808@gmail.com>

Index: src/config/milestone.pl
===================================================================
--- src.orig/config/milestone.pl
+++ src/config/milestone.pl
@@ -55,7 +55,7 @@ $MILESTONE_FILE  = "$TOPSRCDIR/config/mi
 #
 my $milestone = Moz::Milestone::getOfficialMilestone($MILESTONE_FILE);
 
-if (defined(@TEMPLATE_FILE)) {
+if (@TEMPLATE_FILE) {
   my $TFILE;
 
   foreach $TFILE (@TEMPLATE_FILE) {
