Change the transfer perl module so the real module gets properly registered

This is an important move if scripts want to refer to the loaded
module without having perl think it needs to be loaded (again).

Reviewed-by: Rich Salz <rsalz@openssl.org>

external/perl/transfer/Text/Template.pm

@@ -5,8 +5,9 @@
 BEGIN {
     use File::Spec::Functions;
     use File::Basename;
-    use lib catdir(dirname(__FILE__), "..", "..");
-    my $texttemplate = catfile("Text-Template-1.46", "lib", "Text", "Template.pm");
-    require $texttemplate;
+    use lib catdir(dirname(__FILE__), "..", "..",
+                   "Text-Template-1.46", "lib");
+    use Text::Template;
+    shift @INC;                 # Takes away the effect of use lib
 }
 1;